at random

To divide ( a deck of cards ) into two parts a shufflea card at random.

把一幅纸牌分成两部分进行艰难的选择.

In this paper, we summarize and analyze the experimental phenomenon and methods of neodymium-doped random lasers and then discuss the fabrication and testing of neodymium random lasers in detail. At last, temporal properties of random lasers pumped by femtosecond-lasing pulses are investigated.

本文介绍了掺钕材料粉末随机激光器的实验现象与实验方法，对钕玻璃粉末随机激光器的制备和测试进行了详细的讨论，并研究了脉冲随机激光器的时域特性。

Any decent shot with telescopic sights could pick us off at random.

任何借助望远镜瞄准器的像样射手都可以随意把我们逐个干掉。

So, we should guard on our heart and meanwhile not to stir other's heart at random.

所以, 对内我们要注意保护自己的心,同时要避免轻易碰触别人的心.

His wife was in the room. Without taking off his hat he sat down at random.

他的妻子在屋里, 他帽子也没摘就胡乱地坐下来.

For a second group, the words were listed at random.

对于第二组(试验对象), 这些单词是随意排列的.

What the genes produced and how they were connected were assigned at random.

基因产生什么以及怎么连接都是随意安排的.

Methods Different target population were chosen at random and investigated with questionnaire. The data were analyzed.

方法采取随机抽样方法,对不同层次目标人群进行问卷调查并统计分析.

Equipped with stepless regulator connecting transmission system, the cleaning speed can be adjusted at random.

机器配有无级变速器联接传动系统, 可随意调节清洗速度.

We received several answers, and we picked one at random.

我们收到了一些答复，并从中随机挑选了一个。

Yun Tianhe: Wait! You can't rush at random!

云天河: 等一下, 你不能乱闯!

Methods: Divide 40 patients in need of maximum anchorage into 2 equal groups at random.

方法: 在40例需要强支抗的临床病例中,采用随机方法分为2组,每组20例.

Under ordinary conditions, these atoms lies at random angles to one another.

在一般条件下, 这些原子相互之间以不规则的角度排列.

Three people were killed by shots fired at random from a minibus.

3个人被从一辆面包车中发射的乱弹打死了。

Earth had no borders . Is the ground of human were drawn out at random.

但愿所有的地球人都读一下这本书.

When the fast slowly, calmly without haste, and at random and made to roam.

时快时慢, 从容而不急躁, 并且随意而发地到处游走.

Methods: To screen extracts of plants at random with CPE.

方法采用CPE法 对多种植物提取物进行随机筛选.

She opened the book at random and started reading.

她随意翻开书就看了起来.

Experimental treatments were assigned to the plots at random, with the three exceptions mentioned below.

对随机选出的几块地(关于三个例外情况介绍于下)设计出几种试验处理方法.

The room bare of all objects expect several packing crates placed around the room at random.

房间的周围随意摆放一些包装用的柳条箱.

He did this through a device that pinged at random points in time.

他通过能及时在任意点发出呯的声响的装置做了这个记录.

It is better to read a few books carefully than to read many at random.

随便读许多书不如细细地读几本书.

These young men's violence could be unleashed almost at random.

这些年轻人的暴力几乎是在随意发泄.

Simulated car speed table, enter the angle value changes at random pointer.

模拟汽车速度表, 随意输入角度值改变指针指向.

The teacher might suddenly address individual students at random.

老师可能随意突然地与个别学生谈话.

Some of those glass shoe boxes have been plonked down at random in the city center.

市中心随意竖起了几栋鞋盒“式”玻璃建筑.

Pick one at random and jump into it.

随机选择一个并且开始投入进去.

Three black people were killed by shots fired at random from a minibus.

3名黑人被从一辆面包车里胡乱射出的子弹打死了。

The girl turned and smiled at random to the company behind her.

那姑娘转过身来,朝身后的伙伴随意地笑了笑.

Methods: To examine patients with pharyngeal abnormal sense with gastroscope at random.

方法采用纤维胃镜对随机诊为咽异感症患者进行检查.