本文利用两位移矩阵推出了摇块组的综合方程。
Derived in this paper is the synthesis equation of oscillation-slide group by displacement matrix.
介绍了全翻转式双向犁的曲柄摇块式限深轮换位机构的结构、工作原理及参数优化设计过程。
This paper introduces the structure and working principle of the crank rocker transposition mechanism of depth wheel on two way alternative plow and the process of optimizing its parameters.
一年前的那天，我站在房子的废墟旁怒斥大海时，看到了我的一只高跟黑色凉鞋行影孤单地在一块破混凝土板上摇来晃去。
As I stood outside its brokenness that day nearly a year ago, chiding the sea, a solitary black high-heeled sandal of mine teetered on a broken slab of concrete.
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