加工火花塞孔与反孔的复合角度。
Machining the spark plug hole and counter bore at a compound Angle.
滴水板、水槽和塞孔一定要定期消毒。
Make sure the draining board, sink and plug hole are regularly disinfected.
水汨汨地从塞孔中流下去。
滴水板、水槽和塞孔一定要定期消毒。 。
Make sure the draining board, sink and plug hole are regularly disinfected.
这些孔要磨光，油漆，并塞以橡胶塞。
These holes were to be ground smooth, painted, and filled with a rubber plug.
这些孔要磨光，油漆，并塞以橡胶塞。
These holes were to be ground smooth, painted, and filled with a rubber plug.
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