查询词典 double-curved surface

" The ubiquitous ""dagu,"" or ""great drum"", a barrel -shaped double-headed instrument, and the ""bang-gu"", a single-headed opera drum with a small resonant surface producing a piercing ""dry"" sound."

还有无所不在的&大鼓&，这是一种桶状、两头均有鼓面的乐器；此外还有&板鼓&，这是戏曲用的鼓。只有一端蒙有鼓面。鼓面小，能产生共鸣发出一种尖&涩&的声音。

M, and shear strain estimated by the difference between the double integration of accelerations at the ground surface and GL?

3米，和剪应变估计之间的差额，双一体化的加速度在地面和GL ？

Double-check the bed to work: there is no bed of protruding screw, the bed surface, there are no gaps and sharp corners.

仔细检查床的做工：床内部有没有突起的螺钉，床表面有没有缺口和尖锐的边角。

Put forward double layer wreath oxygen to add rubber sand's waterproof buffer of the gum to glue knot layer system on this foundation, the surface layer adoption changed asphalt SMA to settle a method, obtaining good result.

在此基础上提出了双层环氧加橡胶砂胶的防水缓冲粘结层体系，表面层采用改性沥青SMA的处治方法，取得了很好的效果。

At the same time, but there are some fatal weaknesses: First, because of the fish after the window of the vehicle is tilted too much, resulting in increased surface area of glass to one double strength decrease, resulting in - the structural defects; When the car are two high-speed lift larger vehicles.

但也同时存在着一些致命的弱点：一是由于鱼型车的后窗玻璃倾斜得过于厉害，致使玻璃的表面积增大了一至二倍，强度有所下降，产生―了结构上？的缺陷；二是当汽车高速行驶时汽车的升力较大。

Valve types, according to the sealing surface configuration can be divided into wedge gate-type valve Rising Stem Resilient Gate Valve and parallel to the gate-type valve, wedge gate-type valve can be divided into: single-gate type, dual gate plate, air traps and flexible gate plate; parallel gate-type valve can be divided into single-ram type and double plate.

闸阀的种类，按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀，楔式闸板式闸阀又可分为：单闸板式、双闸板式、空气疏水阀和弹性闸板式；平行闸板式闸阀可分为单闸板式和双闸板式。

The precise double sided polishing process is one of the main methods of getting the ultra-smooth surface for these materials.

光电子信息产业的快速发展，要求蓝宝石、单晶硅等材料高效率、超光滑表面加工，精密双面抛光加工是得到这些材料超光滑表面的主要加工方法之一。

Double sided polishing process has become a main machining method for silicon wafer finishing process, but it is difficult to get ultra-smooth surface with the very stringent machining conditions.

双面抛光已成为硅晶片的主要后续加工方法，但由于需要严格的加工条件，很难获得理想的超光滑表面。

To 18 golds proportions, zinc base alloy material quality, according to original vehicle entire simulation manufacture, silver, 4 leaf of vehicle doors and baggage cabin door, even is the roof louvre window lap all may move, the roof louvre window is double-decked, the steering wheel and the front wheel change the linkage, the front-row chair may around move, arranges the catch rod to be possible to move even all may open, the ultra fine paint surface works, the detail decides all perfect principles!

1比18黄金比例，锌合金材质，按原车全仿真制造，银色，4扇车门、引擎盖和行李舱门，甚至是天窗盖板都可以移动，天窗还是双层的，方向盘和前轮转向联动，前排座椅可前后移动，排档杆可拨动，油箱盖甚至都可以打开，超精致的漆面做工，细节决定一切的完美主义！

During the Si homoepitaxial growth on a double domain Si (100)(2×1) surface, a monoatomic layer mode of RHEED intensity oscillation along [100] azimuth and a ＂monoatomic-layer-like＂ mode along [110] azimuth are observed.

对于双畴(2×1)再构表面的Si(100)外延，沿〔100〕方位观测到的RHEED强度振荡为单原子层式；而沿(110)方位观测时为&类单原子层&模式振荡。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐