Experimental data of moving sand grains are introduced and the turbulent structure of flow is investigated by laser current meter.

本文采用激光流速仪对挟带推移质水流的紊流结构进行了较系统的试验研究。

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The Weatherford STP helps you reduce sand damage by moving sand upward through the pump and away from the barrel/plunger interface.

STP可使砂粒向上移动，远离泵筒和泵塞泵接触面，从而减少砂粒引发的磨损。

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The analysis to sandy desertification land types shows that the moving sand dune decreases, semi-fixed sand dune and fixed sand dune increase.

从沙化土地类型上分析，流动沙地面积减少，半固定、固定沙地面积增加。

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But you must be careful. It is easy to get lost in the waves of moving sand especially during sandstorms.

VOA: special.2010.01.04

Yet,a few plants have developed techniques to avoid being buried by moving sand.

VOA: special.2010.01.04

Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving.

VOA: special.2009.02.09

"He'd be up from sunup to well after 10, sometimes past midnight out there moving sand, " Creel said of the early construction of the bunker.

CNN: Inside the bunker: From storm shelter to boy's prison

Last August thousands of leatherback eggs and hatchlings were crushed by bulldozers moving waterlogged sand from key nesting areas.

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The macro line in sand is the 50day moving average at 1205ish, so give it the zone 1190-1205.

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