粘土脈 的英文怎麼說
中文拼音 [niántǔmài]
粘土脈
英文
clayvein-
The quality of furan sand castings is usually better than clay sand castings, however, some defects are also very easy take place with furan sand castings such as blow hole, metal penetration, veining, cracking, slag inclusion, hardness too low, surface recarburation, surface sulphuration, nodularity degeneration etc, which were usually caused by improper raw materials selection, improper method design, incorrect moulding or / and core - making
摘要呋喃樹脂砂鑄件質量一般比黏土砂鑄件好，但如果原材料選擇、工藝設計、造型和制芯操作不當，也會產生氣孔、粘砂、脈紋、裂紋，夾渣、硬度不足、滲碳、滲硫和球化不良等鑄造缺陷。The useful ore mineral is barite and the gangue minerals are mainly calcite, clay mineral and quartz et al
礦石礦物為重晶石，脈石礦物主要有方解石、粘土礦物和石英等。The main original work includes : 1. the interaction between an integral pile and a uniform visco - elastic soil layer with viscous damping or hysteretic damping is theoretically studied, and the pile response to a harmonic load is obtained in a closed form and used to define complex stiffness at the pile head. semi - analytical solution of the velocity response in time domain subjected to a semi - sine wave exciting force is also given
主要工作包括： 1 、在考慮樁周土三維波動條件下，對滯回阻尼、粘性阻尼單層均質土中樁土縱向耦合振動問題進行了解析研究，分別得到樁頂位移、速度頻域響應以及復剛度的嚴格解析表達，以及半正弦脈沖激振力作用下樁頂時域響應半解析解。
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