These results enable us to estimate ultrasonic properties of a liquid cylinder by its echogram.
上述结果使我们能从断层像来推测液柱的声学特性。
The resultant cold, gaseous nitrogen is now injected into the engine's cylinder (see diagram) along with a mixture of water and glycol, known as a heat-transfer liquid, that is at room temperature.
由此产生的冷冰的气态氮被注入发动机汽缸（见图）。与此同时，乙二醇与水的混合物也注入其中，这种混合物是一种常温环境下的“传热液体”。
Working principle: piston moves from left to right, form a negative pressure pump cylinder, the liquid tank into the pump by the inhalation valve cylinder.
工作原理：活塞自左向右移动时，泵缸内形成负压，则贮槽内液体经吸入阀进入泵缸内。
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