薄壁的

In the experiment, two kinds of tubes with alternative diameters and material properties, and three kinds of flat-nosed cylindrical missiles with same length and various diameters are applied. Two classes including six operating modes are designed in the experiment.

在实验方面，本文采用了两种不同直径和材质的薄壁管试件以及三种长度相同，直径不同的平头弹体，设计了两大类六种工况下的实验。

Secondly, it summarizes the development of cold-formed sections and latest trend about stability of cold-formed beams and purlins. Finally, some possible improvements in stability of cold-formed beams and purlins are anticipated.

其中普通钢结构主要指采用大截面和厚板的结构(因表面涂有防锈漆，俗称&红钢&的结构)；而轻钢结构则主要指以轻型H型钢或冷弯薄壁型钢作为承重骨架，用轻型板材作围护的结构(图 1 )。

Cytoplasmic actin microfilament systems were localized in the freshly isolated onion protoplasts of bulb parenchyma cells using TRITC labelled phalloidin probe in the present study.

使用四甲基罗丹明标记的鬼笔环碱探针，以新分离的洋葱鳞茎薄壁细胞原生质体为材料，观察了细胞胞质肌动蛋白微丝骨架的结构与形态。

Thefeatures of floral and leaf morphogenesis , the variation of perforation plate of vessels ,the contact types between vessels and xylem parenchyma cells , the organic anatomy ofC .

本文从连香树花和叶的形态发生与发育，导管分子穿孔板韵变异，导管分子间以及导管分子与木质部薄壁组织细胞的接触方式，器官的解剖结构等方面进行了研究。

5Mm thin shell tube of copper and tube sheet of Q235in central air conditioner .

对薄壁铜管和碳钢管板组合管头的焊接难点进行了分析，制定了合理的焊接工艺，并成功地应用于中央空调器冷凝器和蒸发器的制造中。

Three-Roll machines, used for both solid and hollow components, have pressures ranging from 10 to 100 tons and variants include Tube Fin Rolling machines up to 80mm diameter - and a 48-ton Five-Roll machine for rolling large diameter thin-walled tubes.

三辊设备可加工空心和实心的工件，压力范围10吨至100吨。其它设备包括直径可达80毫米的管尾滚丝设备和用于轧辊大直径薄壁管的48吨五辊设备。

The research and exploration in this dissertation can serve as theoreticalreference for engineer application of thin-walled curved beams.

本文所进行的探索和研究，为薄壁曲梁在工程上的应用提供了理论上的参考依据。

Then, a new nonlinear analytical method-the following method is put forward, mainly for the thin-walled members.

针对影响因素复杂的结构特别是薄壁钢结构，提出新的考虑二阶效应的结构分析方法－跟进解法。

A thin-walled processing aircraft parts, only 30 min, and the same high-speed milling machine parts in the general processing takes 3 h, in the general processing and milling machine to be 8 h; Germany DMG's two-spindle lathe spindle speed and acceleration respectively 12 *!

加工一薄壁飞机零件，只用30min，而同样的零件在一般高速铣床加工需3h，在普通铣床加工需8h；德国DMG公司的双主轴车床的主轴速度及加速度分别达12*！

But as wall thicknesses continue to shrink, a more specialized press with higher speed and pressure capabilities may be required.

但是当薄壁不断的收缩，要求有更大的高速带来的特殊压力。

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