Since a normal incidence plane wave is used as the reference wave, the difficulty and complexity of phase aberration and phase unwrapping of DHM are remarkably decreased.

使用垂直于像平面的平面光为参考光，降低了数字全息显微术中相位补偿和解包的难度和复杂性。

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Model DHM-500 and Model DHM-750 digital height gages are high accuracy measuring instruments, which can be used to measure dimensions of workpieces absolutely and by comparison.

数显高度仪digital HEIGHT GAGE DHM - 500型，DHM - 750型数显高度仪是精密的测量仪器，可以对工件尺寸进行绝对和相对比较测量。

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This is a real product, HomeCloud DHM (a consumer network appliance that facilitates sharing and synchronization of data among home devices such as computers, phones, tablets, network-compatible TVs, etc.) and WSTL should begin earning real money in mid-2011.

FORBES: Bargain-Priced HomeCloud Stock On The Move

He did mention that Westell had a suite at CES Tech Trade show in Vegas and that it had recently won a CES Innovation and Design Award for its new HomeCloud DHM, where DHM stands for Digital Home Manager.

FORBES: Bargain-Priced HomeCloud Stock On The Move