Now is active small-cap quotes, in which small-cap stocks are above key ones, with a larger amplitude. So it's normal to do mid-term back adjustment, not to be frequently changed.

目前还是游资活跃行情，八股在二股之上，振幅会很大，中途回调很正常， 要有中期观念，不要频繁换股。

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Floating crane structure mainly include boom, amplitude varying wire rope, tied back wire rope, truss frame, A-frame, counterweight box, rotating machinery base, and rotary bearing structure.

浮吊结构包括臂架、变幅钢丝绳、系固钢丝绳、桁框架、人字架、配重箱、回转底盘总成及回转支承等部件。

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But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.

电子的波动行为时,我们，要记住,某些地方是正的,某些地方是负的,当我们讲到。

麻省理工公开课 - 化学原理课程节选