We have both true sine wave and quasi sine wave types.

我们有正弦波和准正弦波两种类型。

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Various wave types propagating in structures carry different vibration power.

不同形式的波在结构中传输时携带着不同的振动能量。

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Real time shows that wave types, frequency, magnitude and step by step, show good results.

可实时显示波形的类型、频率、幅度和步进值，显示效果良好。

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On the face of it, though, relying on a single source limits the sorts of wave that can be produced, and therefore the types of task they can perform.

ECONOMIST: Acoustic microfluidics

In the U.S., the TSA uses both types of scanners: 250 X-ray scanners and 264 millimeter wave scanners.

FORBES: Europe Bans Airport Body Scanners For "Health and Safety" Concerns