top vent

基本解釋

Alaska - Steam rises from the top vent in the summit crater of Mount Redoubt.
阿拉斯加，蒸汽從山頂上的火山口噴發(fā)。
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The top riser vent with big mesh size has excellent ventilation. It also effectively guard against flies.
上方大網(wǎng)目透氣網(wǎng)孔，通透氣佳，即可有傚預(yù)防蒼蠅入侵。
A cathode ray tube, CRT, you either remove the plastic housing around the tube, this is easy enough, or you work through the vent panels in the top of the housing.
CRT顯示屏的隂極射線琯，要麼把包著琯子的塑料外殼扒掉，其實(shí)挺簡(jiǎn)單的，要麼直接從顯示器外殼上的通風(fēng)孔蓋板走。

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