1,365 免版税视频文件，用于"科学家"

医学健康医疗药物大学关心外层空间技术人的解剖学外科學

Hemorrhagic brain stroke

医疗药物健康

Full HD

00:20

Vsg surgery stomach organs

医疗药物科学

Full HD

00:18

Jupiter moon space

外层空间奇幻

4K

00:27

World space satellites

外层空间科学

4K

00:14

Universe solar system space

外层空间科幻小说

Full HD

00:10

Knee anatomy pain

医疗药物健康

Full HD

00:37

Knee anatomy pain

医疗药物健康

Full HD

00:29

Lungs anatomy medical

医疗药物科学

Full HD

00:15

Rocket launch nasa space ship

HD

00:20

Computer science programming tablet

电子计算机网络

Full HD

00:07

Cardiac arrhythmia narrated

医疗药物健康

Full HD

01:30

Medicine health surgery

医疗药物健康

HD

00:50

Medicine health surgery

医疗药物健康

HD

00:11

Turkey flag istanbul

Full HD

00:10

Pokemon pokemon go learn

Full HD

00:11

Hubble space telescope astronauts nasa

Full HD

00:21

Earth science world

Full HD

00:20

Science fiction space universe

外层空间奇幻

Full HD

00:25

Galaxy universe space

外层空间奇幻

4K

00:32

Cardiac arrhythmia heart

医疗药物健康

Full HD

01:11

Mini gastric bypass surgery stomach medical

医疗药物科学

Full HD

00:20

Eyeball eye anatomy

医疗药物科学

4K

00:10

The teacher writes homework the teacher wipes the board yellow cloth

铁路列车学校

Full HD

00:12

The teacher writes homework the teacher wipes the board yellow cloth

铁路列车学校

Full HD

00:07

The teacher writes homework the teacher wipes the board yellow cloth

铁路列车学校

Full HD

00:08

Intestines intestine function

医疗药物科学

Full HD

00:13

Human skeleton anatomy

医疗药物科学

Full HD

01:02

The teacher writes homework the teacher wipes the board teacher

铁路列车学校

Full HD

00:21

Spiral metaphysical movement

HD

00:45

Earth science space

Full HD

00:20

Hubble space telescope astronauts nasa

Full HD

00:27

Hubble space telescope astronauts nasa

Full HD

00:24

The medicine mobile emergency

Full HD

00:07

Earth night globe

Full HD

00:20

Floor abstract lights

4K

00:10

Liver function names

医疗药物科学

Full HD

00:10

Balloon procedure angioplasty

Full HD

00:22

Grass nature green

Full HD

00:24

Stent process heart

医疗药物科学

Full HD

00:22

Mail e-mail at

Quad HD

00:03

Electricity electric current

Full HD

00:06

Night sky stars

HD

00:25

Ball 3d multicolored

Full HD

00:10

Data computer script

电子计算机音乐

HD

00:10

Tooth implant medical

医疗药物健康

Full HD

00:12

Home interior furniture

现代的家具

Full HD

00:33

Face disco talk

艺术家身体

HD

00:30

Board chalk finance

Full HD

00:30

Board chalk finance

Full HD

00:13

Film leader film credits guy

HD

00:10

Airplane building outside the window

建筑物飞机

Full HD

00:14

Sketch draw pencil

艺术家学校

Full HD

00:15

Silhouette board drawn

Full HD

00:17

The lessons are over teacher folder

Full HD

00:18

The lessons are over teacher folder

Full HD

00:23

Solar energy renewable energy solar panel

Full HD

00:30

Disco bling shiny

迪斯科贴图

Full HD

00:20

Notebook laptop blur

电子学手指

Full HD

00:13

Looped pyramid triangle

HD

00:03

Digits time measurement

Full HD

00:10

Circuit board technology

Full HD

00:11

Dishes washing clean

Full HD

00:17

Bling dj lazer

00:10

Mail e-mail at

Quad HD

00:03

Tooth bridge medical dental

医疗药物工具类

Full HD

00:11

Violin musician music

音乐家城市

Full HD

00:57

Kidney function health

Full HD

00:09

Lava lamp lamp 70's

嬉皮士银色

Full HD

00:30

Usa america flag

Full HD

00:20

Disco discoteque dance

Full HD

00:21

Human digital people

电子计算机人的

Full HD

00:30

Fire explosion film leader

HD

00:10

Space warp tunnel

Full HD

00:05

Science movement curve

外层空间科学

HD

00:45

Library books shelves

4K

00:17

Fractal render 3d

Full HD

00:16

Binary binary code binary system

电子计算机技术

Full HD

00:29

Rocket launch satellite orbit

HD

01:55

Rocket launch thrusters nasa

Full HD

00:57

Rocket launch cape caneveral nasa

Full HD

00:37

Heart function anatomy

Full HD

00:17

Lava lamp light orange

嬉皮士银色

Full HD

00:30

Bookshelf book library

Full HD

00:07

Sun yellow space

4K

00:10

Tooth root canal

医疗药物健康

Full HD

00:30

Flag lithuania europe

Full HD

00:05

Flag netherlands country

Full HD

00:05

Flag estonia country

Full HD

00:05

Flag bulgaria the flag of bulgaria

Full HD

00:05

Water reflection movement

Full HD

00:18

Paint color painter

Full HD

00:14

Ducks ducklings family

Full HD

00:13

Flag netherlands country

Full HD

00:16

Brain ischemic stroke

医疗药物健康

Full HD

00:30

Disco laser discotheque

迪斯科激光

Full HD

00:27

Disco ball disco retro

Full HD

00:10

Brain function anatomy

Full HD

00:12

Space Shuttle Landing

Full HD

01:53

Photography laboratory studio

HD

01:05

Waterfowl gray geese family

Full HD

00:06

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