2) duplex-zip cord cable
双芯紧套光缆
3) double tube double swivel barrel
双管双动岩芯管
1.
Through the analyses and comparisons on the characteristics and test strength for the cement mixing pile core sample taken by the sample devices of double tube double swivel barrel and the traditional double tube single swivel barrel,it is considered that the traditional double tube single swivel barrel is more suitable to the sample survey of cement mixing pile.
通过对双管双动岩芯管和常规的双管单动岩芯管两种取芯设备所抽取的水泥搅拌桩芯样特征及试验强度等进行分析对比 ,认为采用双管单动岩芯管进行水泥搅拌桩取芯检测比较合适。
5) two-way core-pulling
双向运动抽芯
1.
After a detailed analysis on the structure of an automotive bumper,a die was developed in which the CAE technology,some measures such as prearrangement of deformation amount,feasible sprue gate and two-way core-pulling mechanism were adopted to meet the requirements for the appearance and fit precision of the plastic component.
通过对塑件结构进行详细分析,利用CAE技术,采取了预留变形、合理浇口及双向运动抽芯等措施,保证了塑件的外观要求和配合精度;同时对模具结构进行了分析,结构合理,生产的塑件符合质量要求。
6) double tube single swivel barrel
双管单动岩芯管
1.
Through the analyses and comparisons on the characteristics and test strength for the cement mixing pile core sample taken by the sample devices of double tube double swivel barrel and the traditional double tube single swivel barrel,it is considered that the traditional double tube single swivel barrel is more suitable to the sample survey of cement mixing pile.
通过对双管双动岩芯管和常规的双管单动岩芯管两种取芯设备所抽取的水泥搅拌桩芯样特征及试验强度等进行分析对比 ,认为采用双管单动岩芯管进行水泥搅拌桩取芯检测比较合适。
补充资料：胎紧浸入和套紧浸入
胎紧浸入和套紧浸入
tight and taut immersions
矍数) 图3 犷鳖{ 图4 称空间A CB的嵌人在Z:同调中为单射的(in-Jeetive)，如果对于i)0，诱导同态万.(注，22)~H.(B，22)是单的.令HC=R“是R“中带有超平面边界aH的半空间.例如， H=H:(t)={x“R“:z’(x)簇r}.如果f是一个胎紧浸人，h:是一个非退化的高度函数，那么由Morse理论得到f一’(万:(r))C=M在22同调中是单的.于是由连续性，对任一半空间H这种单性都成立.对于闭流形的光滑浸人，这种半空间性质等价于胎紧性.然而，这种半空间定义也能应用于更大范围的从流形和其他紧拓扑空间到RN中的连续浸人或甚至是映射中去.一个例子是胎紧的“瑞士干酪”，它是一个带边的嵌人曲面，见图5.一个到R中的胎紧映射也称为一个完满函数(详rfect丘inction).公 图5今 图6 对于曲线和闭曲面，半空间性质可导出对任一半空间H，f一’(H)是连通的.它等价于R功ehoff两片性质(R朔chofft场。一pieee pro详rty)，即R“中的任一超平面日H将M至多分割成两个连通的片，见图3和图4中的胎紧曲面和图2中的非胎紧曲线. 半空间定义将胎紧性置于经典几何学和凸性理论之中.由于胎紧性在RN中的任意将凸包才(f(M))映到RN内的射影变换下是不变的，因此胎紧性是一个射影性质(见射影几何学(projeetive罗。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条