sand bucket 中文意思是什麼

sand bucket 解釋
防火沙桶
  • sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
  • bucket : n 1 水桶，提桶；吊桶。2 （唧筒的）活塞；（水車循環運轉的）戽斗；（挖土機等的）鏟斗，勺斗；（汽輪...
  1. The first system consisted of a bucket filled with a substrate of sand / gravel ( 20cm of depth ), on the bottom of which was a 80 mesh / inc2 of nylon ( s1 ) ; the second was similar, but was planted with lolium perenne lam ( s2 ) ; the third was planted with a grass plate consisting of 7 layers unwoven fabric planted with l. perenne ( s3 )

    第一個裝置底層裝20公分高的沙礫，上面放80目尼龍（ s1 ） ；第二個裝置底層也放同樣動西，但上面放多花黑麥草；第三個裝置裏面放著底層為7層無紡布上面種著多花黑麥的圓盤。
  2. Sand pump bucket dredger

    自揚鏈斗挖泥船
  3. The thesis is the initial research content of the project " bucket foundation and unstability mechanism research influenced by bucket foundation on silty. sand seabed ", which is supported by the national natural science fund. it mainly carry about the research of seepage gradient in the process of suction penetration and unstability mechanism of silty sand in the bucket foundation, and it also discuss and analyze the penetration effect of bucket foundation of the different ratio size

    本文是國家自然科學基金項目「海上平臺桶形基礎及其作用下的粉質土海床失穩機制的研究」的前期研究內容，主要通過模型試驗對負壓沉貫過程的滲流梯度及其桶內粉質土的失穩機制進行研究，並探討和分析了不同比尺的桶基的沉貫效應。
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