Terms like simplex (for one) and triplex (for three) indicate the number of cylinders a particular pump features.

“单缸”(一个)和“三缸”(三个)之类的说法，表示的是某一专门水泵所有的气缸量。

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Terms like simplex (for one) and triplex (for three) indicate the number of cylinders a particular pump features.

“单缸”(一个)和“三缸”(三个)之类的说法，表示的是某一专门水泵所有的气缸量。

youdao