沙仪

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1.

The result presents the mean rate of flow velocity is 0 . 91 which has no relationship with sand trap in the flow field .

得到的主要结论有：1 。流场中有无集沙仪两种情况下测得速度的平均比值为 0 .

2.

Therefore , the design of precise sand sampler is of great significance .

因此，研究设计采样精确的集沙仪具有重要意义。

3.

Principle and Application of Vibratory Suspended Load Sediment Instrument

振动式悬移质测沙仪的原理与应用

4.

Design of ultrasonic instrument for prospecting sands

超声波测沙仪的设计

5.

Sampling Efficiency of Vertical Array Sand Traps

垂直点阵集沙仪的集沙效率

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6.

Development of a New Type of Active Vertical Sand Trap

新型主动式竖直集沙仪研制