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。

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I saw one worn-out display Powertrack in a shop; the rubber flaps didn't snap back into place when I removed a plug.

我看到某家商店中展出了一个破损的Powertrack接线板，当我拔掉插头时，胶皮无法复位。

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The periphery of the plug body, which is far from the plug handle, is provided with a plurality of circular grooves, in which the O-shaped rubber seal ring is embedded.

本发明远离水塞提手的水塞体的外周面上设置若干圈环形凹槽，O形橡胶密封圈卡嵌在环形凹槽内。

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