Squeeze the rubber bulb and insert the dropper into the bottle.

挤压橡胶球和插入滴管到瓶子里面.

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Squeeze the rubber bulb to pump out the air from the tube, thereby creating suction.

?挤压橡胶球泵的空气管, 从而创造吸力.

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The bag is purged and filled with samples using a rubber bulb or other pumping devices.

先排空塑料袋,再用橡皮压挤球或者其它泵类装置将样品充入袋内.

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