大约95%的不吸烟者和84%的吸烟者也同意“婴幼儿因吸入父母烟灰缸烟味而致病”的论断。

Some 95 percent of nonsmokers and 84 percent of smokers agreed with the statement that “inhaling smoke from a parent’s cigarette can harm the health of infants and children.”

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液力端主要由液缸、吸入、排出阀总成、吸入、排出弹簧、吸入管、柱塞、盘根、安全阀、稳压器等部件组成。

Fluid end consists mainly of module, suction and discharge valve assembly, suction and discharge spring, suction and discharge pipe, plunger, packing, safety valve and pressure regulator, etc.

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对于三缸低波动往复泵，理论上应使三个活塞在排出行程（吸入行程）中的速度之和为一常数，采用凸轮机构能达到这一目的。

Theoretically the sum of the velocities of the three pistons on the discharge stroke in a low-fluctuation triplex pump should be a constant, and this can be achieved by means of the cam mechanism.

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