光电英语词汇(E) ... electron-hole 电子-空穴 electron-hole drop 电子-空穴降 electron-hole pair 电子-空穴偶 ...
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electron-hole liquid drop 电子电洞低液
drop man hole 跃水井
flat drop round-hole plate 平落式圆孔排种盘
flat drop round hole plate 平落式圆孔排种盘
Drop Though Hole 反装桥洞
Scientists use "hole" as a metaphor for the area in which ozone concentrations drop below the historical threshold of 220 Dobson Units.
科学家们用“空洞”一词表示臭氧浓度低于220个多布森单位(多布森单位是用来度量大气中臭氧柱尺度的单位。
Then maybe we should drop it down a deep hole, or destroy it.
那么我们应当挖个深坑埋了它,或者毁掉它。
When the library is closed, you can drop books in through the special hole in the door.
图书馆关门后,你可以把书从门上专设的小口中投进去。
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