圆筒

In this thesis, the second—order mechanical autofrettage technique is put forward and studied for the frist time.

它可提高厚壁圆筒的弹性强度和疲劳寿命。

Finally, after analysis of measuring the residual stress in autofrettage thick-walled tubes, the corresponding formulae and the formulae of measuring residual stress using Sachs method and X-ray method have been presented.

最后还对机械自紧厚壁圆筒残余应力测试技术进行了分析，给出了相应的公式和Sachs内膛削法X射线残余应力测定的计算公式。

The theoretical analysis methods on the first—order and second—order mechanical autofrettage technique of thick—walled cylinders, with reflecting the material characteristics, are studied systematically in this thesis.

本文首次提出和研究的厚壁圆筒二次机械自紧技术，可扩大机械自紧技术在不同口径身管上的应用，降低冲头的推力，充分挖掘现有设备的潜力。

It will expand the use of mechanical autofrettage technique on different—bore tubes, cut down the push force and further tap the potentialities of current equipments.

本文首次提出和研究的厚壁圆筒二次机械自紧技术，可扩大机械自紧技术在不同口径身管上的应用，降低冲头的推力，充分挖掘现有设备的潜力。

The mechanical autofrettage of thick—walled cylinders is a sort of practical and valuable technique used to enhance its elastic strength of thick—walled tube and increase its fatigue life.

厚壁圆筒一次和二次机械自紧技术的理论与实验研究机械自紧

The mechanical autofrettage of thick—walled cylinders is a sort of practical and valuable technique used to enhance its elastic strength of thick—walled tube and increase its fatigue life.

厚壁圆筒机械自紧技术是一项有实用价值的工艺技术。

Leading products for the baghouse filter bags, frames, cleaning system; The company has annual production capacity of 2,000,000 meters cylindrical bag, the framework of one million meters, cleaning system, more than 10,000 sets of production capacity; Products are widely used in the National throughout the industry, with the user maintained good cooperation; product quality has been recognized by our customers.

主导产品为袋式除尘器滤袋、框架、清灰系统；目前公司有着年产圆筒滤袋200万米、框架100万米、清灰系统一万多套的生产能力；产品广泛应用于全国各地、各行业，同用户保持着良好的合作；产品质量得到了广大客户的认可。

Leaf blade often ovate to elliptic-ovate to obovate, margin often sharply to minutely serrate, abaxially often barbate on lateral vein axils; fruit mammilliform to cylindric, to 5 cm.

叶片通常卵形的到椭圆形卵形的到倒卵形，对有细锯齿，背面的通常具髯毛的在侧脉腋锐的边缘通常；果乳头状的到圆筒状，对5 厘米 13d var。

Compared with the ordinary plate beamless roof, the cast-in-place reinforced concrete spatial core beamless roof has two prominent diversities, one is buries the hollow cylinder in the floor to form the hollow floor in advance, the other is equipped with wide-flat beams between the frame.

和普通平板无梁楼盖相比，现浇钢筋混凝土空心板无梁楼盖有两个突出的不同点，一是在楼板内预埋空心圆筒形成空心楼板，二是在框架之间设有暗扁梁。

Through the analysis of the flowing character of metal injection molding, a set ofessential equations describing the flowing process of metal ring injection molding areestablished on the bases of the general principles of hydrodynamics and calorifics.

通过对金属粉末注射成形流动过程规律的分析，从流体力学和传热学的基本原理出发，建立了一组描述圆筒形金属粉末注射成形流动过程的基本微分方程，经过假设与简化，得到一组简化的控制方程，采用有限差分法求解了这组微分方程，得到温度场。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。