Similar cyclic stresses may have occurred due to wind-induced swaying motion during storage. 同樣在存放時(shí)由風(fēng)力引起的橫向擺動(dòng)也可以產(chǎn)生類(lèi)似的循環(huán)應力。
Impulsion may be recognized by the freely swinging back and the participation of all the joints in the forward motion. 自由擺動(dòng)的背部和身體所有關(guān)節都參與向前的運動(dòng)是動(dòng)力的表現。
The steam-engine piston makes a cyclic motion. 蒸汽機活塞做往復運動(dòng)。
This is a mechanism using a slider to transit a rotation to reciprocating the linear motion skimpily. 此機構利用一滑槽，即可簡(jiǎn)單的將圓周運動(dòng)轉成直線(xiàn)的簡(jiǎn)諧往復運動(dòng)。
