查询词典 crossing-over

This product mainly applies for transmission line of high voltage for river-crossing or lake-crossing upon requirements of acidproof or alkaliproof.

主要适用于过河、过湖等有防酸、碱要求的高压输变电工程。

By using Laser Doppler Anemometry, the local liquid velocity profiles of the single-phase flow and two-phase crossing flow were measured on a sieve tray simulator. The effect of gas on liquid under crossing flow was studied.

本文通过使用激光多普勒测速仪对矩形塔板上液相单相流和气液错流情况下的局部液相流场进行测量，考察了气液错流时气相对其周围局部液相流场的影响。

A zero crossing detection is synchronized which the zero crossing point of the line voltage of each of the three phases.

一个过零检测同步其中的三个阶段的每线电压过零一点。

Level road crossing is emphasis and weak point. So how to develop the security of the level road crossing is a very important problem..

平交道口是铁路安全运输问题的重点和薄弱点，因此如何提高铁路平交道口的安全性也就成为了一个极具重要性的课题。

For example ,many sings on the road tell dirvers what to do .when you see a triangle with two chiildren crossing the road ,you must not dirve too fast because there is a school nearby,and school children may cross the road.a sign with the letter " p "means you can park here .and a triangle with an arrow means turning left or right .also at crossing, traffic lights use three different colours as sings :a red light means " stop ", an amber light means "get ready for stop" and a green light means"go ".some road signs warn us of possible danger.

它们简单易懂。比如说，很多在马路上的标记告诉司机们该做什么。当你看见一个三角形标记里面有两个小孩横穿马路的时候，你最好不要开得太快，因为附近有一个学校，学校的孩子们会横穿马路。带有"P"字的标记说明你可以在这里停车。还有带着箭头的三角形标记就意味着左转或右转。还有在十字路口，交通灯用三种不同的颜色最为标记：红灯停，琥珀色的灯意味着"准备要停下了"还有绿灯就是行的意思了。一些马路标记警告我们一些可能存在的危险。

The average zero-crossing frequency of zero crossing detector is divided, the former generation is evaluated, the characteristic of Dopper frequency tracking loop in SPA-Ⅱ system is summarized by comparison between the two systems.

本文还对过零截点器的平均过零频率进行了推导，由此对处理机-Ⅱ型的前一代系统作了估价，在此基础上，通过比较，总结了处理机-Ⅱ型系统多卜勒频率跟踪环的特点。

Furthermore, we determine the nonorientable crossing number sequences of those graphs by their crossing numbers on the projective plane and the embedding technique. Then we show that the nonorientable crossing number sequence of C(10,4) is non-convex.

利用子式理论的部分结果，证明了一些循环图C(10，4)，C(9，3)，C(8，3)在射影平面上的交叉数，再利用嵌入技巧，得到了它们的不可定向交叉数序列，并证明C(10，4)的不可定向交叉数序列不是凸的。

Accident analysis showed that the road outside the casualties occurred, mainly due to pedestrians walking on the railway line, lying or sitting, crossing the line, crossing the railway station yard, climbing vehicles, drilling vehicles, vehicle, pedestrian, motor vehicle and grabbed the rail crossing suicide.

事故分析表明，发生路外伤亡事故，主要原因是行人在铁路线路上行走、坐卧、横过线路、穿越铁路站场、爬车、钻车、跳车，行人、机动车辆抢过铁路道口以及自杀等。

After the Zunyi Meeting, under the command of Mao Zedong, Siduchishui river, interspersed among the large number of troops on the enemy, wipe out a large number of the enemy, and then out of the enemy's unpreparedness namtu Wujiang River, encroaching upon Guiyang, robbed crossing the Jinsha River, out of hundreds of thousands of KMT The besieged made a strategic shift in the decisive victory. In May, successfully passed the big Liangshan, crossing the Dadu River, crossing the snow, the thin air of the folder Jinshan, in mid-June, and the same year in May from the Sichuan-Shaanxi Soviet Fourth Army march in western Sichuan, maogong region to join forces, after due Zhang Guotao separatist activities of the anti-Party, Red Army advance northward.

遵义会议后，在毛泽东的指挥下，四渡赤水河，穿插于敌人重兵之间，歼灭大量敌人，随后出敌不意南渡乌江，直逼贵阳，抢渡金沙江，摆脱了数十万国民党军的围追堵截，取得了战略转移中具有决定意义的胜利。5月，顺利通过大凉山，强渡大渡河，翻越终年积雪、空气稀薄的夹金山，6月中旬，与同年5月从川陕苏区长征的第四方面军在四川西部懋功地区会师，后因张国焘的反党分裂活动，红一方面军先行北上。

The results show that the air crossing pressure pulse magnitude of the container generated in the tunnel is 3.46 times that generated in open air when container flat wagon at the speed of 160 km/h passed by EMU moving at the same speed. Both the lateral force and overturning moment of the container train during the crossing induced in open air and tunnel are approximately proportional to the square of running speed of the passing train. The pressure of crossing side and uncrossing side for the container flat wagon is almost equal since the one-dimensional characteristic of pressure distributing induced in the tunnel is not faintish. Consequently, the value of the lateral force and overturning moment of the container train generated in open air is greater than that generated in the tunnel, about 1.1 times.

研究结果表明：集装箱平车以160 km/h的速度与动车组等速交会时，在隧道内会车时车载集装箱中部压力变化幅值是在明线会车时的3.46倍；在明线和隧道内会车时，集装箱列车受到的侧向力和侧滚力矩均与交会列车运行速度近似成平方关系；因隧道内压力分布一维特性较强，集装箱平车交会侧与非交会侧压力相差并不大，因此，在明线会车时集装箱平车受到的侧向力和侧滚力矩均比隧道会车时的大，大约是其1.1倍。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。