276 免费照片 适用于 验光

实验光学物理学晚上实验室颜色玻璃黑暗的性质绿色
Free stock photo of coal, dark, ember
激光火
Free stock photo of experiment, green, light
植物树叶
Free stock photo of arm, bulb, creative
手指光
Light Microscopy Microscope Experiment. The particles in the tube glow orange because they have been fluorescently tagged with a dye that reacts to green laser lights to allow construction of a 3D image point by point.
实验室辉光
Inside the Spectrum prototype unit, organisms in a Petri plate are exposed to blue excitation lighting.
技术光
Using a black light, a technician closely inspects one of NASA's twin Radiation Belt Storm Probes inside the clean room high bay at Astrotech payload processing facility.
背景光
At the Astrotech facility in Titusville, Fla., technicians perform backlight inspection and cleaning on NASA's Lunar Reconnaissance Orbiter, or LRO.
实验室光
Tomato plants are growing under red and blue LED lights in a growth chamber inside a laboratory at the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida.
外层空间农业
laser scientific optical system
技术绿色
laser scientific optical system
技术绿色
scientist doing research in a quantum optics lab
学校学生
ovement of microparticles by beams of laser
桌子绿色
ovement of microparticles by beams of laser
桌子绿色
ovement of microparticles by beams of laser
桌子绿色
Near-death Experience
臉光
Three test tubes used in a Legionella pneumophila bacteria detection test. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.
科学健康
潍坊光正实验学校
城市景观天际线
Abstract Bubbles
光泡
Green plants in a row of test tubes with water
科学技术
US Navy 060530-N-2832L-050 Navy Lt. Cmdr. Doris Wong, an optometrist, distributes eye glasses at Zamboanga Health Center
验光
US Navy 090715-N-9689V-007 Lt. James David, an optometrist, conducts an eye exam with the aid of a Tongan interpreter for a local man during a Pacific Partnership 2009 during a Pacific Partnership 2009 medical civic action proj
验光
US Navy 080614-N-6410J-059 Lt. Megan Rieman, an optometrist embarked aboard the amphibious assault ship USS Boxer (LHD 4), gives a patient an eye exam at the Guillermo Enrique Billinghurst school in Barranca
验光
US Navy 070826-N-6278K-183 Cmdr. Anna Stalcup, an optometrist attached to the Military Sealift Command hospital ship USNS Comfort (T-AH 20), examines Susana Gamboa's eyes at Colombian Naval Hospital
验光
US Navy 090402-N-1580K-690 Navy optometrist Cmdr. Louis Perez adjusts a new set of reading glasses on 71-year old villager Marcelina Martinez during the Beyond the Horizon humanitarian assistance exercise in Honduras
验光
Blue Electric Sparks
电光
Pacific Partnerhsip 2011 in Pohnpei 110707-N-BC134-084
验光
US Navy 090402-N-1580K-710 Navy optometrist Cmdr. Louis Perez uses a retina scope and lens rack to check the eyes of 9-year old Sergio Colochos during the Beyond the Horizon humanitarian assistance exercise in Honduras
验光
US Navy 070723-N-7088A-008 A deaf patient gives the OK sign to Lt. Cmdr. Brian Hatch, an optometrist attached to Military Sealift Command hospital ship USNS Comfort (T-AH 20), during an eye exam at the El Realejo Health Care Ce
验光
US Navy 060830-N-3931M-091 U.S. Navy Hospital Corpsman 3rd Class Jeffery Kennedy from Yucaipa, Calif., assigned to the Medical Treatment Facility aboard the Military Sealift Command (MSC) hospital ship USNS Mercy (T-AH 19)
验光
US Navy 110825-F-ET173-274 Lt. Cmdr. Robert Franks, an optometrist from Vacaville, Calif., checks a patient's eyes at the Killick Coast Guard Base
验光
Navy optometrists conduct eye exams. (19090893765)
验光
US Navy 090829-N-9689V-003 Navy optometrist Lt. James David examines a child during a Pacific Partnership 2009 medical civic action project
验光人
US Navy 110624-F-NJ219-103 Lt. Patricia Salazar, an optometrist from San Francisco, checks a patient's vision at the Humberto Mendez Rivas medical
验光人
US Navy 070809-N-6278K-257 Luis Alva Castro, Peru's minister of interior, has eyeglasses fitted for him by an optometrist attached to Military Sealift Command hospital ship USNS Comfort (T-AH 20)
白色验光
US Navy 090625-F-7522G-002 Airman 1st Class Shaquonique Jones sorts through glasses for an optometry patient during a Continuing Promise 2009 medical community service project
玻璃验光
Auckl, New Zealand, Experience
新西兰光
Optics geiger counter double slit
实验室物理学
Shadow curtain light
光簾
Shadow curtain light
光簾
US Navy 081027-N-5642P-127 Lt. Megan Rieman gives a Trinidadian man a general eye exam
年轻的人
Eyesight eye specialist
光学眼
Led display test
电子学实验室
Lens optic equipment
透镜眼
Experimental photography glow
褐色光
Experience nature refuge
性质树
Medical colorful composition
医学玻璃
Shopping shop eyeglasses ophthalmologist
购物眼
Spectacles eyesight vision
玻璃眼
Object photography photography fillet
攝影光
Light science physics
书呆子科学
Cannon Beach Oregon
动物鸟纲
Heat chemistry experiment
玻璃火
High voltage experiment high frequency ac voltage
背景电
Experiment motion 100
运动光
Test desk light
技术褐色
Light guide attempt physics
物理学光
Shining lighting pear
光梨
Oregon coast pacific northwest cliffs & beaches
动物鸟纲
Prism light beam light guide
物理学光
Light physics experiment
藍色光
The Oregon Coast and the Pacific Ocean
动物鸟纲
Seagull and Kite
动物鸟纲
Light physics experiment
物理学光
Oregon coast
动物鸟纲
Oregon coast
动物鸟纲
Cannon Beach Oregon
动物鸟纲
Eyes eye lashes green vision
人的眼
Light physics experiment
模式光
The Oregon Coast and the Pacific Ocean
动物鸟纲
Oregon coast pacific northwest cliffs & beaches
动物鸟纲
Motion light color
黄色光
Wave energy electrostatic charging
海浪电
Laboratory science technology
科学技术
Float hot air balloon ride sunbeam
冬季气球
Prism light beam light guide
物理学光
Professional optometry vintage
优质的畫框
Light physics experiment
绿色褐色
Light physics experiment
黄色光
Eyewear optometry optometrist
附件褐色
Optometry health glasses
健康玻璃
High voltage experimental physics demonstration
表演电
Light guide attempt physics
物理学光
Light physics experiment
绿色光
High voltage experimental physics demonstration
表演电
Surveyor optical lens
透镜设备
Faradayscher cage faraday cage electric shielding
表演电
Medical slide instrument
健康碟
Prism light beam light guide
物理学光
Light guide attempt physics
建筑光
Vision eyesight medical
健康医学
Opening isolated team
技术团队
Light physics experiment
黄色光
Equipment photo studio digital camera
技术对象
High voltage experimental physics demonstration
人的表演
Ivy hedera helix pyrus
庭園光
Glowing girl effect
名人女孩
Beekeeper beekeeping pollen
蜂蜜蜂族
Electricity illumination light
玻璃电
High voltage experimental physics demonstration
人的表演
Vision eyesight medical
健康医学
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