上下: and -- one of the six catego ...震动: shake; shock; vibrate; quake ...震: quake; shake; shock; vibrate幅: width of cloth小: small; little; petty; minor的: 4次方是 The fourth power of 2 i ...浮动震动: waver起动震动: starting shock移动震动: movere震动: shake; shock; vibrate; quake; chatter; tremulation; succussion; oscillation 震动全国 reverberate throughout the nation; 震动人心 make a great impact on people; 地震引起的震动 earthquake shocks; 火车经过的时候, 房子震动。 the house vibrates when a train passes地下震源: subsurface source水下震荡器: submarine oscillator水下震源: underwater source小的: chicken; diminutive; dwarf; kecil; klein; kucuk; lilla; lille; lilliputian; litla; litle; low; mala; male; malo; malyy; maza; mazs; mic; mikros; mild; mini; minor; petite; petty; pieni; pikku; pony; puny; small, little; teeny-weeny; tiny; two-by-four; vaha; vaike; weeny上下: 1.(职务、辈分上的高低) high and low; old and young 举国上下 the whole nation; 全家上上下下都很高兴。 all members of the family, old and young, are very pleased.2.(从上到下) from top to bottom; up and down 这个水塔上下有五十米。 the water tower is fifty metres high.3.(从高到低或从低到高) go up and down 摩天楼里有电梯, 上下很方便。 with an elevator in the skyscraper, we can easily go up and down.4.(程度高低) relative superiority or inferiority 不相上下 equally matched; about the same; 难分上下 hard to tell which is better5.(用在数量词后面) about; or so; or thereabouts 三十岁上下 about thirty years old; thirty or so震幅频率响应: amplitudefrequency response井下震击钻头: downhole hammer bit机动震荡器: mechanical shaker气动震击器: nitrogen jar会将手震幅度放大: optical leverage effect风动震击工具: impact power tool脉冲电动震源: impulsive electrical source气动震击钻井: air hammer drilling; pneumatic hammer drilling气动震源技术: dinoseis technique自动震打装置: automatic rapping device