查询词典 U-shaped

N is the formal connection between U and TOPIA and also a meaningful interruption.

在这里，N对于U和TOPIA而言既是一种形式上的连接，又是一种意义上的阻断。

Secondly,we derive the complete decomposition of U(1) and SO(2) gaugepotential using the unit vector of the wave function,through which we show thatthere exists a topological invariant number in quantum mechanics,which iscorresponding to the winding number.

其次，我们用波函数的单位矢量导出了U(1)和SO(2)规范势的完整分解式，表明在量子力学中存在着一个对应于环绕数的拓扑不变量。

Sliding friction characteristics of these films against U-Nb alloy pin were evaluated by a pin-disc tribometer and Scan Electrical Microscopy.

利用销盘摩擦磨损试验机并结合SEM观察分析了对偶销为U-Nb合金时，试样的摩擦学性能并讨论了摩擦磨损机理。

The frictional force and wear are two basic parameters for the investigation of friction and wear properties,but the frictional force can not be measured with the OAT-U high temperature tribometer .

文章针对日本产OAT-U大越式高温摩擦磨损试验机不能测量摩擦力的不足，对其进行了改造，增加了摩擦力的在线测试功能。

This can be extended to nxn tridiagonal matrix with L, U bidiagonal.

把它推广到nxn三对角线矩阵使具有两对角线的矩阵L、U。

The German U-boats posed another threat. On December 23 a troop carrier had been hit by a torpedo in the Channel, outside Cherbourg.

还有德国U型潜艇的威胁。12月23日，在瑟堡港外的海峡里，一艘运兵船就被鱼雷击中。

Ascitic fluid ADA activity was higher than 30 U/L in 80％ of tubercular ascites, while none of non-tubercular benign ascites reached to such level.

腹水ADA＞30 U/ml者在结核性腹水组中占80％，而非结核性良性腹水组的患者均低于此值。

Another tweeter, known as bfalke, claimed: iTunes U may be one of the most amazing tools on the internet.

"另一种高音，作为bfalke称，声称："通过iTunes U可能是最令人惊讶的工具之一，在互联网上。

A joint plate complete of a U bolt for connecting, the pole body and the structure.

用来连接固定柱和支架，带U 型螺钉的金属板。

The engineering facilities service mainly take JIAOMEITE,DACROMET series spreading equipment as the leadership,it is good at development and production of special-purpose spreading equipment by spare parts for car,for example the automobile brake disc,braking,muffler,exhaust,oil pipe,U shape bolt,deep hole bolt and so on the special product special purpose equipment.

工程设备业务主要以焦美特、达克罗系列涂覆设备为主导，尤以汽车零部件专用涂覆设备的开发、生产见长，譬如汽车刹车盘、制动毂、消声器、排气管、油管、U形螺栓、深孔螺栓等特殊产品的专用设备。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。