... pneumatic tri-pen recorder ==> 气动三针记录器 pneumatic trough ==> 集气槽 pneumatic tube ==> 气动导管,气动输送管,气压管,气压运输管=>気送管 ...
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Pneumatic trough conveyor 气动槽运送机
N a shallow dishlike vessel filled with a liquid, usually water, and used in collecting gases by displacement of liquid from a filled jar held with its open end under the surface of the liquid 集气槽 [chem]
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