查询词典 screw thread

Master and slave are double-headed screw thread threaded rod.

主、从动螺杆的螺纹均为双头螺纹。

The machining technique is recommended about machining the steep-lead multiple trapeziform left-hand internal screw thread in large diameter part using numerical control reformed CQ5250 vertical lathe.

介绍了采用数控化改造的CQ5250立车设备，加工大直径零件上的大导程多头梯形左旋内螺纹的加工方法。

Introduced a new type of helix screw thread pipe heat exchanger, all stainless steel and advanced heat transfer technology in the application of raw material medicine has greatly improved the recovery of solvents to enhance production efficiency, effectively enhanced the competitiveness of enterprises .

介绍一种新型的螺旋螺纹管换热器，全不锈钢材质及先进的换热技术在原料药行业的应用，大大的提高了溶媒回收率，提高了生产效率，有效地增强了企业的竞争力。

Key words: helix screw thread pipe;intermediate medicine; application

要害词：螺旋螺纹管；原料药；应用

Considering the national situation in china , the water heat exchanger adopts the high efficient screw thread copper tube condenser and plate , the operation is more reliable .

考虑中国国情的水换热器设计，采用高效内螺纹铜管的冷凝器和板式换热器，运行更可靠。

At present, There may existent problems in traditional method of checking and measuring screw thread ring gauge. Based on measured theory, dependability of this way of measurement is analyzed in this paper.

针对我国目前在螺纹环规测量方法中存在的问题，根据其测量原理进行了可靠性分析。

Bbstract:Bt present, There may existent problems in traditional method of checking and measuring screw thread ring gauge. Based on measured theory, dependability of this way of measurement is analyzed in this paper.

针对我国目前在螺纹环规测量方法中存在的问题，根据其测量原理进行了可靠性分析。

Contents: understand the assembly drawing of a jack and complete detail drawings of a screw thread insert by the assembly drawing.

内容：读懂千斤顶装配图，并由装配图拆画件2螺套的零件图。

The influence of the welding parameters such as angular velocity of the pin, the radii of the pin and the shoulder, the cone angle, the screw-thread angle, etc., are studied in detail.

文章建立了搅拌摩擦焊接过程的三维有限元热分析模型，讨论了旋转速度、搅拌头半径、轴肩半径、搅拌针锥角以及螺纹角等焊接参数对工件温度场的影响。

These induced in transitional zone piercement of drill pipe and many screw thread failures of tool joint.

塔里木油田山前构造带地质结构复杂，同时强化钻井技术在塔里木油田得到应用，使得钻具在井下的使用环境恶劣，钻具工况复杂，导致塔里木油田钻杆加厚过渡带刺漏和钻具螺纹失效事故较多。

Life. But the intrinsic way of the Internet by wire confines accessing and using of the network information.

然而，Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。

I have a strong persuasion that this is true .

我坚信这是正确的。