8,703 免费图片 适用于 工程

建筑施工建筑建筑物城市载具产业天工人水道路
firefighters control the burn
消防队员火
Expedition 41 Crew Lands Safely Back on Earth
外层空间飞行
Trains
铁路列车载具
Angry man sitting on a broken car
载具旅行
Two Fast Trains in a Train Station
载具旅行
City
建筑物城市
Tools Mechanical
工具类桌子
workers
产业人
City
建筑物水
Clock tower
建筑物时钟
Transportation of assembled rocket into hangar
建筑物载具
Factory Engineer
工廠职员
Big Engine with big Wheels
运输輪
DFRC F-16 Fleet and Support Crew 1997. Four different versions of the F-16: On the left and right sides are two F-16XLs. On the left is the F-16XL #2 (NASA 848), on the right is the single-seat F-16XL #1 (NASA 849), between them at center left is an F-16A (NASA 816). Next to it at center right is the U.S. Air Force Advance Fighter Technology Integration (AFTI) F-16. September 29, 1997.
军队载具
Engine of a large ship in Duluth, Minnesota
美国船
Architecture
建筑物旅行
The bridge
建筑物水
Garden
建筑物树
Element of new rocket during construction at factory
符号技术
Rocket transporter parked at industrial factory
宇宙飞船技术
City
建筑物城市
Space rocket installed on launch pad before countdown
载具技术
Spaceport ready to launch rocket on sunny day
技术性质
Skyscrapers
建筑物建筑
Under The Bridge
道路桥
Residence
建筑物城市
City
建筑物城市
City
建筑物城市
Field Testing
建筑物冬季
Mercedes-Benz U.S. International Plant located in Tuscaloosa County. Original image from Carol M. Highsmith’s America, Library of Congress collection.
产业木材
The launch of space shuttle Discovery on the STS-131 mission was captured from a field of Florida Power & Light solar panels off of S.R. 3 at NASA's Kennedy Space Center in Florida.
宇航员飞船
The ULPower UL260i is a flat four aircraft engine
航空器汽车
Balcony
建筑物建筑
Construction
建筑物旅行
厭煩
笔记本电脑人
Architect with a Blueprint
平面图建筑师
City view
建筑物水
Building
建筑物城市
Astronauts Test
宇宙飞船宇航员
Power line at sunset
背景技术
Looking at Hoover Dam, Nevada
建筑水
Skyscraper
建筑物建筑
Danger Death
黄色电
Road
植物树
Black and White Close up of rushing water of the river
河流水
Mirror with Carbon Dioxide Snow
外层空间雪
Truck parked near hangar in rocket factory
建筑物载具
City
建筑物建筑
Sewer Manhole
城市对象
Construction
建筑物城市
Water flow
建筑物树
The Highline
载具城市
Dock
水海
City full of buildings
建筑物水
Bus trip
载具运输
City
建筑物城市
天平
工具类平衡
建筑工人
男人臉
Space Shuttle Atlantis hurtles toward space for a rendezvous with the International Space Station.
宇航员水下
(Caleb) Construction Worker Welder
产业人
(Caleb) Construction Worker
工具类人
Boston city
建筑物水
Pipe grid building
建筑物金属
Metal
载具金属
New renovated NASA Ames Research Center 12 foot Pressure Wind Tunnel, seen here is the single stage, 20 blade axial-flow fan powered by a 15,000 horsepower variable speed, synchronous electric motor that provides airflow in the closed-return, variable-density tunnel.
航空器光
木匠
工具类男人
Camera view from under the Shuttle Carrier Aircraft at NASA’s Kennedy Space Center in Florida.
航空器载具
Dark
建筑物城市
City
建筑物水
天平
工具类平衡
Screw
工具类产业
Boeing completes successful first flight
军队载具
Spaceship detail with American flag in hangar
符号科学
(Caleb) Construction Worker Welder
产业臉
City
建筑物城市
Old victorian building
建筑物城市
City
天际线建筑物
Fence Construction
栅栏黄色
(Caleb) Construction Worker
产业人
Astronaut Spacesuit Testing for Orion Spacecraft
外层空间宇航员
Viewed from the Banana River Viewing Site at NASA's Kennedy Space Center in Florida, space shuttle Discovery arcs through a cloud-brushed sky lighted by the trail of fire after launch on the STS-128 mission.
航天飞机宇航员
Fire truck
载货汽车载具
Motorcycle Bike
摩托车云
建筑工人
微笑臉
技工
中等肤色 技工机械的
建筑工人
建筑施工工人
Young woman near broken car calling for help
载具旅行
Man Carpenter
男人臉
Robotic Arms
机器人机械的
Thunderstorm
建筑物性质
Train
建筑物城市
City highrises
天际线建筑物
Industrial Gauges
中等肤色 技工产业
Skyscraper
建筑物建筑
Full View of the Dam with the water of the River
旅行水
The official crew portrait of the Apollo 11 astronauts from left to right are: Neil A. Armstrong, Commander; Michael Collins, Module Pilot; Edwin E. "Buzz" Aldrin, Lunar Module Pilot.
天文学宇航员
Dr. Von Braun standing by five F-1 Engines.
外层空间载具
Aerial Industrial
载具产业
telecommunications worker
男人电
Space shuttle Atlantis and its four-member STS-135 crew head toward Earth orbit and rendezvous with the International Space Station, 8 July 2011.
宇航员载具
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