The body is built from balsa wood, and the wings powered by a wire crank driven by a rubber band.

燕尾蝶的身体是用轻木做的，而翅膀的动力来源为用橡皮圈驱动的金属曲柄。

youdao

The mechanism driven by a bidirectional pneumatic cylinder for climb robot is composed of two groups of slider-crank mechanism in series.

本机构由两组曲柄滑块机构串接而成，双作用气缸驱动，实现机械手的主爬升运动。

youdao

Compared with the driving force used in the traditional diaphragm pump, the hydraulic-driven replaced the crank linkage driven with a new type of hydraulic cylinder.

这种液压驱动隔膜泵动力端与传统隔膜泵动力端相比，把传统动力端的曲柄连杆机构设计为液压缸驱动机构。

youdao