dark ground microscope 暗视场显微镜 ; 暗场显微镜 ; 暗场观察法
dark-ground illuminator 暗场照明器
dark ground illumination 暗场照明 ; 暗视场
dark ground 暗视野 ; 暗视场
oblique dark ground ilumination 倾斜暗场照明 ; 斜角
central dark ground illumination 中心暗场照明
dark ground illuminator 暗场照明器 ; 暗场照明
I encountered many hikers who were headed to a distant camp-ground with just enough time to get there before dark.
我遇到许多徒步旅行者,他们正前往一个遥远的露营地,他们刚好可以在天黑前到达那里。
The understory is the dark, cool environment under the leaves but over the ground.
灌木层是指位于树叶下、地面上的阴暗、凉爽环境。
The scene of the Five Starred Red Flag against the dark sky on the grey lunar surface was taken by a camera on the Chang'e s robotic probe's lander and then sent to the ground control.
在灰色的月球表面,五星红旗映衬着黑暗的天空,这一幕是由嫦娥机器人探测器的着陆器上的相机拍摄的,然后发送到地面控制中心。
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