China Orb, online Chinese to English dictionary with nearly 1 million entries and plenty of excellent examples. The pin yin and pronunciation sound of Chinese wrods are provided. China Orb includes a lot of Chinese professional terms in many industries such as Medicine, Chemistry, Mechanism, Electricity, Computer, Economy, Law, Architecture. If you can not find satisfying translation elsewhere,try China Orb Chinese to English dictionary.

China Orb, online English to Chinese dictionary with more than 1 million entries and plenty of excellent examples. China Orb includes a lot of English professional terms in many industries such as Medicine, Chemistry, Mechanism, Electricity, Computer, Economy, Law, Architecture. If you can not find satisfying translation elsewhere,try China Orb English to Chinese dictionary.

up-and-down
English: up-and-down
Chinese: a. 一上一下的, 时起时伏的
Examples:
1. "On a car without shock absorbers, the repeated up-and-down movement of the springs and wheels would produce a very rough ride."
汽车不装减震器,弹性元件和车轮反反覆覆的上下运动会使汽车颠簸的非常厉害。
2. Abrupt up-and-down motion (as caused by a ship or other conveyance).
突然上下的动作(由船或其它运输工具引起)。
3. Farming has been an up-and-down industry.
务农一直是起伏不定的行业。
4. In addition to the up-and-down motion generated, surface waves also have a side-to-side motion.
除产生上下运动外,面波还会发生侧向移动。
5. Radio frequency up-and-down converter
射频上下转换器
6. The 40 kilometer course started with five laps around the stadium track. The runners then left the stadium and embarked on a dusty,unpaved course that took them up-and-down over seven different hills.
全程为40公里的赛程要选手们先在体育场跑道上跑5圈,然后离开体育场,踏上尘土飞扬、凹凸不平的土路,上上下下越过了7个山包。
7. The machine utilizes machinery synchronizing shaft structure, which is simple and easy to repair to balance its up-and-down motion.
本机械上下空载运动同步采用机械扭力轴钢性结构,结构简单、修方便。本机可以根据不同的板厚,通过调整压力与保压时间来解决中央角度偏大的问题。
8. Up-and-down indicator
紧松指示器| 松紧指示器| 走时指示器
9. Up-and-down motion
垂直方向往复运动
10. Up-and-down movement
垂直往复运动;垂直运动;升降运动;上下运动