英语词汇sand gravel filter怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

短语

1
After reviewing a few design methods of sand gravel filters, a new design method of filter using broad graded materials is proposed in the paper.
本文在回顾了滤层保砂性设计的几种方法后，提出了广级配砂砾滤层保砂性的设计计算式。
2
In drainage of agricultural lands, a filter or gravel envelope is used to prevent the entrance of fine sand and silt into the drains.
在农田排水中常常采用砾石或过滤层来防止粉细砂和泥沙进入排水沟。
3
A metal filter assembly used to support and retain the sand placed during gravel pack operations.
在砾石充填作业期间放置的为支承和挡住砂子所用的由金属制成的过滤装置。

单词	sand gravel filter
释义	sand gravel filter 简明释义砂砾过滤机网络释义 1 ?砂砾过滤机砂砾过滤机短语 1 sand and gravel filter 砂砾石过滤器 2 gravel and sand filter bed 砂砾滤床双语例句 1 After reviewing a few design methods of sand gravel filters, a new design method of filter using broad graded materials is proposed in the paper. 本文在回顾了滤层保砂性设计的几种方法后，提出了广级配砂砾滤层保砂性的设计计算式。 2 In drainage of agricultural lands, a filter or gravel envelope is used to prevent the entrance of fine sand and silt into the drains. 在农田排水中常常采用砾石或过滤层来防止粉细砂和泥沙进入排水沟。 3 A metal filter assembly used to support and retain the sand placed during gravel pack operations. 在砾石充填作业期间放置的为支承和挡住砂子所用的由金属制成的过滤装置。
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