Sand diameter<0.05mm can pass the channel, but sand diameter at the range of 0.05-0.1mm is apt to depositing in the lumen and channel of drip tape, furthermore it causes emitter clogging.
粒径<0.05mm的泥沙可以顺利通过流道,但粒径处于0.05-0.1 mm范围内的泥沙则易沉淀在滴灌带管腔内和流道内,从而引起灌水器堵塞。
参考来源 - 滴灌带抗堵塞性能与临界含沙水流滴灌带抗堵塞性能与临界含沙水流研究临界含沙水·2,447,543篇论文数据，部分数据来源于NoteExpress
The quantitative relation among the threshold wind velocity of sand movement, sand diameter and the agglutinate stress of sand bed is obtained with the mentioned dimensionless variables.
经分析得到起沙风速与沙床沙粒粒径和沙床粘结力间的数量关系。
The island is about 60 feet in diameter, covered in sand, plants and mangrove trees.
这座岛直径60英尺，表面覆盖沙土，种植了红树和其他植物。
Based on typical engineering examples, the stability problem of base expansion of large diameter expanded-base piles in sand layer is summarized and analyzed.
结合典型工程实例，总结和分析了大直径扩底桩在砂层中的扩底稳定问题。
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