In this paper, we discuss the nature of half-wave loss about mechanical wave, electromagnetic wave and matter wave respectively.

本文分别讨论了机械波、电磁波、物质波在两种介质的分界面正入射传播时产生半波损失的本质。

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From outside, the 2, 711 dark gray slabs form a gentle wave, ankle-high in some places, designed to give visitors a sense of instability, a loss of orientation.

从外观来看，纪念碑群由2711根长短不一的灰色碑柱组成，从远处望去，黑灰色的石碑如同一片波涛起伏的石林，让游客不由自主产生一种不稳定的、迷失方向的感觉。

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Orchard without precaution will suffer heavy loss in case cold wave occyrs.

如果寒潮发生，不采取预防措施的果园将会受到严重损失。

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As a loose-lipped executive recently let slip, we can look forward to a 50 percent increase in battery life in the coming wave of devices, with no loss of performance.

ENGADGET

Granted, there was little the NWS could have done to prevent the loss of life caused by that wave, but had a similar tsunami erupted farther west, we would not have been fully prepared either.

FORBES: Fact and Comment

In the past year, we have seen a tragic wave of police officer fatalities, and have mourned the loss of too many public safety officers.

WHITEHOUSE: The White House