查询词典 ball pen

Ball. valve. non-return valve, bellows seal valve, etc......

球阀。闸阀。止回阀、波纹管密封截止阀等。。。。。

The nonstandard anslysis theory is used in the κ-saturated nonstandard model, the definition of the quasi-near-standard points in a metric space is given and it is proved that a point in nonstandard metric space is quasi-near-standard point if and only if its monad contained in every *-open ball of some standard point.

在κ-饱和的非标准模型下，采用非标准分析方法，提出了度量空间中的拟近标准点的定义，得到了非标准度量空间中的点是拟近标准点的充要条件是它属于某一个标准点的每一个*-开球，证明了度量空间的非标准完备化恰是该空间的非标准扩张中拟近标准点集的商空间。

The relation between the completeness of several local convex topology in normed vector space and that of induction topology of its unit ball was pointed out in this paper.

本文指出了赋范线性空间上的一些局部凸拓扑的完备性与它的单位球上相应的诱导拓扑的完备性之间的关系。

A perfectly round and centered ball adorns this handmade solid gold nose ring.

一个完美的圆形而且这个中心的装饰球鼻手工纯金戒指。

Before they had time to recover, I sent a nother ball over their heads.

我乘他们还没清醒过来时，又开了一枪，子弹在他们的头上飞过。

One part of that nothingness became a spinning ball of fire which we know as our sun.

那'无有'的一部分变成了旋转的火球，现在的太阳。

It's amazing how much money we spend on heating things, especially considering there is a huge ball of nuclear fusion called the Sun that will do much of it for us.

它是惊人的，我们多少钱用加热的东西，特别是考虑到有一个巨大的核聚变球称为Sun将执行它，我们的经济。

Try to make it through all of the levels without dying by nudging the ball into the portals.

设法使通过各级另一方面刺激下到门户网站的球死亡了。

Cattle can nuzzle ball without harm to, or activation of, valve.

牲畜可以用鼻子触动球而不会被伤害，或启动阀门。

They couldn't hit a ball with an oar. Listen, this is on the house.

他们用桨都打不中球听着这药我送你了

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。