青年中文gravel stratum的意思
gravel stratum中文翻譯：
礫石層，砂礫層
gravel───n.(Gravel)人名；(英、法、西)格拉韋爾；n.碎石；砂礫；vt.用碎石鋪；使船擱淺在沙灘上；使困惑
gravel lock───碎石閘
stratum granulosum───[解剖]顆粒層；[組織]粒層
stratum basale───[組織]基底層；（組織）基底層
gravel rash───礫石皮疹（非正式）
stratum lucidum───[組織]透明層
clingstone gravel───粘石礫石
stratum germinativum───[組織]生發層
gravel binder───礫石粘結劑
controlled blasting technology was applied to the construction of freezing thick gravel stratum section in the main shaft of Xulou Mine.───許樓煤礦在主井人工凍結巨厚礫巖段施工中，采用了控制爆破技術。
rock-soil foundation treatment and constructiont echnology of sand and gravel stratum;───級配砂石墊層換填處理薄層軟土地基是一種經濟實用的方法。
Drilling in gravel stratum is one of present difficulties in drilling area with low drilling speed, short service life of bit and high drilling cost.───礫石地層鉆進是鉆探的難題之一，不僅鉆進速度低，鉆頭的使用壽命短，而且鉆探成本高。
Study of Blasting Techniques of Frozen Gravel Stratum in Vertical Well Tunneling───立井掘進凍結礫石層爆破技術初步研究
Effect Analysis Before and After Bottom Grouting of A Test Pile in Gravel Stratum───礫石層中同一根試樁樁底注漿前后效果分析
A study on the causes of cracks in cement stabilized gravel stratum and its prevention measures───水泥穩定碎石基層裂縫出現的原因及預防措施
Superficial rock-soil foundation treatment and construction technology of sand and gravel stratum───淺層巖土型地基處理及砂礫石墊層施工技術
Engineering Performance Evaluation of Gravel Stratum at the Engineering───某工程礫石層工程性能評價
Construction of cement stabilized gravel stratum and quality control in expressway project───高速公路水泥穩定碎石上基層施工與質量控制
Whether the natural sand gravel stratum in the river bed would serve as the foundation of the superhigh faced rockfill dam or not was one of the key technical problems of the project.