Hydrometer: An instrument used for measuring the specific gravity of a liquid or solution.
比重计：量度液体或溶液的比重的仪器。
An instrument used to measure pressure. A manometer consists of a U-shaped tube partially filled with a liquid that can vary in specific gravity from 1.0 (water) to 13.57 (mercury).
测量压力所用的一种仪器，压力计由部分装有相对密度在1.0(水)至13.57(汞)范围内的液体的U形管组成。
The medium of is suspending liquid with high density. Under the action of centrifugal force the minerals are separated according to their specific gravity in the heavy medium cyclone.
重介质旋流器的介质为高密度悬浮液，在离心力的作用下，矿物主要在重介质旋流器中按比重分离。
The medium of is suspending liquid with high density. Under the action of centrifugal force the minerals are separated according to their specific gravity in the heavy medium cyclone.
重介质旋流器的介质为高密度悬浮液，在离心力的作用下，矿物主要在重介质旋流器中按比重分离。
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