n.開孔；導出液體；流出口；澆鑄；抽頭

動詞tap的現(xiàn)在分詞.

The amount of lubricity is controlled for the particular machining operation and tool, such as tapping or face milling. 潤滑劑的量是跟道具特定的機加工工藝和刀具而特設，例如開孔或面銑。

n.竊聽

adj.搭線竊聽的

動詞wiretap的現(xiàn)在分詞形式.

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