Designed a injection mold with two teeth threaded core-pulling mechanism for the objective slide.

Rectangular style a one-way valve connecting thread, flange type connectivity and connecting three forms.

直角式 单向阀 有内螺纹连接 、 板式连接和法兰结构三种型式.

Rising stem-inside screw is the most common and preferred design for bronze multi-turn valves.

明杆 - 内螺纹结构对于青铜多回转阀门来说是最通用、首选的结构形式.

These screws have threads that cut hole and are made to fasten metal to metal.

自攻螺丝的螺纹会在孔内切割出内螺纹孔,然后锁紧两块铁板.

Straight-through one-way valves installed in a connecting thread of the pipeline.

直通式 单向阀 用内螺纹连接安装在管路上.

The workers were using a tap to cut the screws.

工人们正在用刻内螺纹的工具刻螺纹.

Longgao 3 was bred cross between long 03 ( a half-dent improved line ) and 706 ( A half-dent line ).

龙高3号是以自育系龙03为母本,外引改良系706为 父本 杂交育成.

This usually occurs in old females and can be managed with medicine.

这通常发生在雌性进入老年期后,可以通过药物控制.

Males are generally taller than females.

雄性动物通常长得比雌性动物高.

The last 20-30 years has brought significant changes in male and female sex roles.

在过去的20-30年中,在男性和女性角色方面,发生了重大的变化.

Indeed, in comparison, female sex tourism is insignificant.

的确, 相比较而言, 女性性旅游是微不足道的.

The overthrow of mother-right was the world historical defeat of the female sex.

母权制的被推翻,乃是女性的具有世界历史意义的失败.

In East Germany, the state-run studio DEFA produced seven movies in this mode, two of which appear in the series.

东德的国营电影制片厂DEFA制作了七部这种类型的电影，其中两部会在这个影展系列中放映。

Zhao Defa thinks the fact of the peasants'lives reflects the living history and the transferring history of the views in one hundred years.

在赵德发那里，农民生存实景反映了百年农民立体化的生存史与观念流变史；

Four years later, DEFA produced even groovier and loonier entertainment.

四年后，DEFA制作了更精彩、更疯狂的片子。

We obtain a relation between the Nielsen number of coincidence points of two Dehn twists and the minimal geometric intersection number of the simple closed curves determining these two Dehn twist.

本文中，我们主要讨论曲面上一种特殊自同胚&Dehn twist的重合点，给出了重合点Nielsen数与闭曲线的最小几何相交数的联系。

Gary Payne and Dick Dehn, 54 years together, also earned loud applause as they rode by in a rickshaw.

Gary Payne和Dick Dehn在一起54年了，当他们乘坐黄包车经过时，人群发出了响亮的欢呼。

In 1911, M. Dehn gave three fundamental problems in combinatorial group theory: word problem, conjugacy problem and isomorphism problem.

1911年，M.Dehn提出了组合群论的三个基本问题，即：字问题、共轭问题、同构问题。

Dehn Surgery on Knots with Tunnel Number One

洞数为1的纽结上的Dehn手术

Hyperbolic Groups, Automatic Groups and Dehn Functions of Groups

双曲群，自动机群与群的Dehn函数

A female enlisted person in the armed forces. Youths under eighteen cannot muster in.

在陆海空三军中被征召的女性人员。年龄不满18岁的青年不能征召入伍。