Quartz vein zone is audio visual indicator and estimated marking in macroscopic scale.

石英脉带是宏观上直观的找矿评价标志。

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This paper presents the classification of zone for hazardous area, marking for ex electrical equipments, selection of ex equipment and the design on electrical wiring used in explosive atmosphere.

文章阐述了爆炸性粉尘环境、爆炸性气体环境危险区域的范围划定，防爆电气设备的标志、防爆电气设备的选型及爆炸性环境电气线路的设计。

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Movement between grids snap to each zone, marking the end of a page.

ENGADGET: Samsung's defense against Apple patents begins with DiamondTouch table, LiveTile UI prior art

The July reading of 50.9 is forecast to fall to 48.5 marking the first dip in two years to the contraction zone.

FORBES: Dollar At Two-Week Peak On Weaker Global Manufacturing