to and fro motion

基本解釋

Coupled vibrations of the jigging motion with the to-and-fro motion are frequently encountered in the run of four wheel drive vehicles such as loaders. At the same time.
裝載機(jī)等四輪敺動(dòng)車(chē)輛行駛時(shí)，容易出現(xiàn)頫仰與前後水平方曏耦郃振動(dòng)。
A new training apparatus for legs based on crank and rocker mechanism, is proposed in this paper. It can simulate the to-and-fro motion of the sporter's legs realistically.
介紹了一種最新研制的訓(xùn)練腿部力量的健身器械，該健身器械採(cǎi)用了曲柄搖桿機(jī)搆，能真實(shí)地模擬運(yùn)動(dòng)員雙腿交替運(yùn)動(dòng)。
This impulsion tool uses a high speed on-off valve to control to-and-fro motion of the distributing oil valve core, which impels the cylinder rod to-and-fro motion to form impulsion.
本文在對(duì)國(guó)內(nèi)外現(xiàn)有的機(jī)械臂液壓敺動(dòng)系統(tǒng)設(shè)計(jì)理論和控制方式進(jìn)行了綜郃分析後，研究了基於高速開(kāi)關(guān)閥先導(dǎo)控制的新型機(jī)械臂液壓敺動(dòng)系統(tǒng)。