四开

One mother is company, two is a psychic reading, three is a hen party, four is a bridge club.

一个老妈是公司，两个则是超自然协会，三个以上可以开母姐会，若四人成行则能成立桥牌俱乐部。

The optimum reaction conditions are obtained by orthogonal exptl. design; ring-opening reaction:n:n = 1:1.3, Hexamethylenetetramine catalyst 0.7%,reaction temp. is 80℃, reaction time is 7 h, and concentration of inhibitor is 0.3%. ring-closing reaction : n:n=1:0.9, reaction temp. is 40℃, reaction time is 5 h.

通过正交设计确定了最佳工艺条件为：开环反应：六次甲基四胺用量0.7%(占反应物总量的质量百分比)，阻聚剂用量0.3%(占反应物总量的质量百分比)，ECH：MAA的摩尔比为1.3：1，温度80℃，反应时间7h ；闭环反应：氯醇酯： NaOH的摩尔比为1：0.9，反应温度40℃，反应时间5h。

The fourfold expansion of the hominid brain started 2.5 million years ago, when the ice ages began.

人猿类的脑扩增四倍，开始于250万年前，也就是上一次冰期之初。

For four seasons they have tolerated him, humored him, teased him, goaded him, pushed him.

这四个赛季里，他们容忍他的一切，开他玩笑，逗他，鼓舞他，鞭策他。

The fourth propulsion subsystem will provide immunity against non-targeted warp disruption fields, interdictor spheres or anchored bubbles.

第四推进子系统可以免疫非锁定目标的反跳立场（没上脚本的重拦开的立场，具体名字我记不是很清楚了）、跃迁干扰探针以及泡泡

We were able to successful completion of the internship, and four of our efforts and collaboration are inseparable.

我们能够成功地完成了实习，我们四个同学的努力和协作是分不开的。

Fortunately all four problems occurred near a town, remarkably good luck for someone traversing the vast open distances of the Great Plains in an old jalopy.

对一个开著老爷车横跨大平原的人来说，他实在很幸运，因为所有的四个问题都发生在小镇附近。

The corrupt official received a jail term of 10 years for the jerry-built project.

坚持四项基本原则是改革的基础，谁敢否定这点就是开历史倒车。

It is capable, like others did when San Commissioner John Doe as open as companies.

有本事就像人家张三那样当处长像李四那样开公司。

We drove four hours ... to Mount Kilimanjaro, and finally arrived in the middle of nowhere.

我们开了四小时车…到吉力马扎罗山，最后来到一个鸟不生蛋的地方。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。