梯形

The grease should be laid on the periphery of seal ring, the inner of ladder-shaped screw theread and chuck ring oil channel during installation.

安装时应将橡胶密封圈四周，梯形螺纹内，压环油槽内，中心管外径上涂黄油。

Fairy lights dance around the trapezoid opening at the top of the Shanghai World Financial Center.

彩灯在这座建筑顶部梯形的开口中舞动，它被命名为&上海环球金融中心&。

With a given bending and torsion deformation of wing tip,the whole transformed geometry can be estimated.

机翼的平面形状可看作由多个梯形组成，机翼弯曲变形为三次函数，扭转变形为一次函数。

DNA structure is arranged by two 'rails' of RNA that have been twisted into the shape of a winding staircase. This is the normal and stable condition where hereditary information is stored RNA, on the other hand, is in a condition of instability.

去氧核糖核酸是两根核糖核酸绞合成双轨、螺旋状的梯形骨架，是正常的稳定状态，遗传讯息即贮存於此。

The distance between the eastern and western sides extends over 1800 meters, and the total length of the southern city wall measures about 2000 meters and became a city protected from all sides; by the city walls in the east, west and south, and by the Yazi River in the north.

复原后的三星堆古城平面略呈北窄南宽的梯形，城东西长度在1800米以上，南城墙长约2000米，城内面积达3.5平方千米，形成了由东、西、南三面城墙及北侧鸭子河为防御体系的古城。

Numerical examples were given for InAs/GaAs QWRs in both (001) and (111) growth directions for square and trapezoidal QWR crosssections.

数值例子给出的InAs /砷化镓qwrs在这两个（ 001 ）和（ 111 ）生长方向，为广场和梯形qwr crosssections 。

The complete ladder diagram and program for the intelligent control mode can be found in ref.

完整的梯形图和智能控制模式程序中可以找到参考。

The standard sights feature a trapezoid rear sight and a triangle front.

标准景点功能梯形表尺和一个三角形的前面。

The transit time and gain characteristics of electrons which travel in the micro-channel plate gated by picoseconds high voltage pulse were simulated.

对皮秒高压脉冲驱动下微通道板中电子的渡越时间特性和增益特性进行了数值模拟，在电压脉冲波形分别为高斯形、三角形和梯形时，得到了电子渡越时间与电压脉冲宽度、幅度的关系曲线。

The transit time and gain characteristics of electrons which travel in the micro-channel plate gated by picoseconds high voltage pulse were simulated. The curves of the transit time versus the voltage pulse width and the voltage amplitude are obtained when the waveforms of the voltage pulse are Gauss, triangle and trapezoid.

对皮秒高压脉冲驱动下微通道板中电子的渡越时间特性和增益特性进行了数值模拟，在电压脉冲波形分别为高斯形、三角形和梯形时，得到了电子渡越时间与电压脉冲宽度、幅度的关系曲线。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。