写真素材の検索結果

Girl using tweezers with circuit board

Girl testing proton exchange membrane cell

Girl testing proton exchange membrane cell

Girl testing proton exchange membrane cell

Girl testing proton exchange membrane cell

Girl testing proton exchange membrane cell

Girl using soldering iron

Girl controlling robot

Girl controlling robot

Girl controlling robot

Girl controlling robot

Girl working on solar cell in classroom

Girl working on solar cell in classroom

Girl working on electronics project

Girl working on electronics project

Girl working on electronics project

Girl working on electronics project

Girl working on electronics project

Teen girl

Woman holding circuit board, portrait

Girl using microscope

Girl using microscope

Girl holding green leaf with tweezers

Girl holding green leaf with tweezers

Girl holding green leaf with tweezers

Woman using 3d printer

Woman using 3d printer

Young woman working on circuit board

Young woman working on circuit board

Young woman working on circuit board

Young woman working on circuit board

Young woman working on circuit board

Girl with pcr tubes

Girl using microscope

Focused girl student assembling circuit board in classroom

Students sitting at desk in class, low section

Contemplative boy sitting on bean bag

Girl using microscope

Girl holding green leaf and making notes

Girl using microscope

Girl using microscope

Girl holding flask with green leaf

Portrait of boy in classroom

Portrait of boy in classroom

Focused boy student in goggles soldering circuit board in classroom

Focused boy student soldering circuit board in classroom

Young woman studying

Girl students assembling computer in classroom

Technician testing circuit in microelectronics laboratory

Portrait of teacher in front on blackboard

Elementary schoolgirl looking bored during lesson

Students in classroom, sitting at desks, with arms raised

Woman holding a printed circuit board

Woman soldering a printed circuit board

Female engineer working on a circuit board

Empty classroom with modern glass walls

授業中の小学生

Third graders sitting in a classroom

Printed circuit board

Focused boy student assembling electronics in classroom

Children hanging coats on pegs

Circuit board manufacturing machinery

Circuit board manufacturing

Student playing with model in classroom

Secondary school student concentrating in an ICT lesson

Secondary school student concentrating in an ICT lesson

Lab assistant holding circuit board

Girl experimenting with fuel cell

Girl experimenting with fuel cell

Circuit board repair

Portrait of smiling elementary school girl sitting bored in classroom

Connections on circuit board, elevated view

Students soldering circuit board in classroom

Simple circuit with motor

Deaf-mute education, 1917

A girl using a telephone

Elementary Student

Elementary Student

Pupils in school classroom

Students raising arms during lesson in classroom

Teacher helping female student in classroom

Teacher addressing students in classroom

Woman soldering a printed circuit board

Woman soldering a printed circuit board

Female engineer soldering a circuit board

Female engineer soldering a circuit board

Female engineer soldering a circuit board

Female engineer soldering a circuit board

Female electrical engineer with circuit

Male student listening to teacher in classroom

Student examining birdcage in classroom

Engineer with circuit board

Engineer with circuit board

Lab assistant holding circuit board

Teacher helping female student in classroom

Teacher addressing students in classroom

Girl using microscope

Girl with microscope

Girl with microscope

Girl using microscope

Girl using microscope

Girl with microscope

Girl with microscope

Girl using microscope

Girl using microscope

Girl using microscope

Girl using microscope

Girl using microscope, portrait

Girl using microscope, portrait

Girl examining microscope slide

Girl using microscope

Girl using microscope

Teacher addressing students in classroom

Teacher addressing male student

Teacher addressing students in classroom

Two Children of Migratory Workers in Elementary School Classroom at FSA Camp, Weslaco, Texas, USA, Arthur Rothstein for Farm Security Administration, February 1942

Two Children of Migratory Workers in Elementary School Classroom at FSA Camp, Weslaco, Texas, USA, Arthur Rothstein for Farm Security Administration, February 1942

Teacher helping female student in classroom

Teacher helping female student in classroom

Teacher helping female student in classroom

Students writing their GCSE exam in classroom

Robotics student

Female electrical engineer using laptop

Girl having lunch

Student outside classroom

Girl working on electronics project

Girl working on robotics project

Boy Looking Through Telescope

Person holding an electronic circuit board

Circuit board

Pupils in school classroom

Light-dependent resistor

Light-dependent resistor

PCB potentiometer

PCB potentiometer

PCB potentiometer

PCB potentiometer

Teacher and student talking

後ろの席の子と会話をする小学生女子

授業を受ける小学生女子

授業中発表をする小学生女子

Children exchanging notes during class, 1950s-60s

Secondary school students studying in class

Secondary school students studying in class

Secondary school students looking through a microscope

Secondary school student looking through a microscope

Secondary school student looking through a microscope

Pupils in school classroom

Pupils in school classroom

Boy standing next to teachers desk at front of class, 1950-60s

School in Kamba country.

Boy in classroom

Two boys using in computers in classroom, elevated view

Raised hand

Little Boy in Classroom

Little Boy

Elementary Student in Classroom

School Children in Classroom

Printed circuit board

Printed circuit board

Chrome circuit board

Man adding micro chip to circuit board, close-up of hand

School lesson

School lesson

Focused girl students soldering circuit boards in classroom

Crossing guard and school girl

Children Waiting to Enter School in Farm Bureau Building, New Pie, Mexico, USA, Russell Lee, October 1940

Adding components to printed circuit board

Adding components to printed circuit board

Circuit board

Circuit board

Students in Rural Schoolroom, Wisconsin, USA, John Vachon for U.S. Resettlement Administration, September 1939

Students in Rural Schoolroom, Wisconsin, USA, John Vachon for U.S. Resettlement Administration, September 1939

Children of Migratory Workers in Elementary School Classroom at FSA Camp, Weslaco, Texas, USA, Arthur Rothstein for Farm Security Administration, February 1942

First Grade Children and Teacher, Goodman School, Coffee County, Alabama, USA, Marion Post Wolcott, U.S. Farm Security Administration, April 1939

First Grade Children and Teacher, Goodman School, Coffee County, Alabama, USA, Marion Post Wolcott, U.S. Farm Security Administration, April 1939

Boy in classroom, sitting at desk, with arm raised

Bored young teenage boy in class

Student Studying in Rural Schoolroom, Wisconsin, USA, John Vachon for U.S. Resettlement Administration, September 1939

授業中の小学生

授業中の小学生

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Engineer working on circuit board

Circuit board with capacitors

Circuit board with capacitor

Technician using microscope to examine microelectronics

Teacher Watching Students Paint

生徒に勉強を教える女教師

Teacher with student looking at globe

Rows of chairs in front of blackboard in classroom

Chairs and tables in classroom

授業中の小学生

Girl using soldering iron