双作用 meaning in Chinese

da
difunctional
double acting
double-acting

In a double-acting engine there is only one piston per cylinder .
在双作用发动机中，每个汽缸里只有一个活塞。
A chemical messenger is, at least, a "double agent". it attracts some species and repels others .
化学信使至少是一种“双作用体”。它引诱一些昆虫，忌避另一些昆虫。
Modern stirling engine can be divided into two main categories-displacer type machines and double-acting machines .
现代的斯特林发动机可分成两大类：置换式发动机和双作用发动机。
Double acting cylinders for agriculture . specifications
农用双作用油缸.技术条件
Double acting high - pressure vane pump for ship
船用高压双作用叶片泵

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