Face mask: The face mask is painted in an alternating pattern of gloss black and gun metal grey.

脸罩部分：脸罩被涂成亮黑色和铜灰色相间的样子。

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AIM to explore the alternating pattern of myocardial ultrasonic integrated backscatter of SD rats before and after being exposed to electromagnetic pulse (EMP).

目的探讨电磁脉冲照射前、后SD大鼠心肌组织超声背向散射参数变化特点。

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Long: Alternating rows of even and odd Numbers of stars, beginning and ending with the longer row. This is the pattern of our current 50-star flag.

首尾长中间短型：各行中同时存在奇数及偶数星星排列，首行及尾行中的星星数量要多于其他行。这种模式正在为目前的50星条旗所使用。

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One of his most striking designs combines different pieces of wood in a pattern of alternating and interlocking strips.

FORBES: Connect

For the 12, 000-seat basketball arena, architects at Wilkinson Eyre devised a rapidly erected steel-frame system shrink-wrapped with a white PVC skin, the curved steel stretchers forming a pattern of alternating diagonal projections on the outside.

WSJ: London Olympics 2012 | These Knock-Down, Shrinkable Games | By Hugh Pearman

Instead, a pattern revealing the features of wartime life is skillfully woven from the alternating diaries.

FORBES: 'Mr. Hitler Will Not Come Today'