小卵石上的大部分红宝石废料在用有球状突起的橡胶短棍搅动时起泡。

The bulk of the ruby rubbish on the pebble bubbles when stirred by bulbed rubber club.

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座板和支架之间设有减振垫；支棍一端或两端带有圆柱形橡胶头。

Said stick has cylindrical rubber head at one or both ends.

youdao

座板和支架之间设有减振垫；支棍一端或两端带有圆柱形橡胶头。

Said stick has cylindrical rubber head at one or both ends.

youdao