圆柱

Cheesed head studs for arc stud welding are largely applied in bridges, reinforced concrete for high buildings and industrial buildings, cover fixture of heave duty ships, boiler pipe welding, inserts fixture for boiler pipe and other special purposed containers.

电弧螺柱焊用圆柱头焊钉系列产品主要用于桥梁、高层建筑及工业厂房的钢-混凝土结构，大吨位船舶各种孔盖的固定，锅炉管道的螺柱连接、锅炉管道的散热及储罐、槽车等各种容器特殊衬里的固定。

These columns are flexible and can be wound into coils.

这些圆柱是活动的，可以绕成一卷。

The deformation and damage principles of long cylinder colliding with ground were studied in this paper.

对圆柱碰撞地面的变形及破坏规律进行了探讨，在此基础上，建立了构筑物倒塌冲击地面的计算模型，并研究了构筑物不同的着地冲击方式对构筑物破坏和地面受力的影响。

On the basis of ray optics, the theoretical expressions of the collimated beam by a DHCL are derived, and the numerical results are also given.

本文以光线光学为基础，对双半圆柱透镜准直半导体激光束问题进行了系统分析并给出了数值模拟结果。

Because of simple structure and easy fabricating, the cylindrical lenses have been used in many practical applications for beam collimating of LDs.

柱透镜因其结构简单、材料便宜以及加工容易而在半导体激光束准直领域获得较多的应用，但普通的圆柱透镜其准直能力非常有限，为了提高柱透镜的光束准直能力，设计出更加合理和可行的结构是目前在这方面研究的主要方向之一。

A general code, three-dimensional cylindrical coordinates with collocated grid system for heat transfer and fluid flow in porous media, is developed.

在三维圆柱坐标程序基础上开发了计算多孔介质流动与换热的三维交错网格程序。

It uses an infinite long dilating as an example.

文中运用无限长脉动圆柱算例进行了验算。

Principle and methods of closed-forming for bevel gear and multi-motion distributaries for cylinder gear was introduced.

阐述了应用闭式成形技术成形伞齿轮的原理，以及复动分流技术成形圆柱齿轮的原理。

Thin hollow parts such as masts can be stiffened with wire, round toothpicks or small dowels.

细小凹陷的部件，如桅杆，可以用金属丝加固，用牙签或小圆铁棒滚成圆柱型。

All extruded knots of these trees have to be planed to make a column.

所有这些树挤出的木结都要刨平做成一个圆柱。

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。