Machining the spark plug hole and counter bore at a compound Angle.

加工火花塞孔与反孔的复合角度。

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Make sure the draining board, sink and plug hole are regularly disinfected.

滴水板、水槽和塞孔一定要定期消毒。

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The water gurgled as it ran down the plug-hole.

水汨汨地从塞孔中流下去。

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The water gurgled as it ran down the plug-hole.

水汨汨地从塞孔中流下去。

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