At present, the safe volume of blood substitute is limited to 500 to 1,000 milliliters.

That firm is looking for a new accountant. At present the salary they will offer has been left open.

那家公司正在物色一位新的会计, 工资多少尚未确定.

The crime rate is rising rapidly at present and the police force is overstretched.

当前的犯罪率急剧上升，警力不堪重负。

Only Africa is at present little affected by hard drugs.

目前只有非洲没怎么受到硬毒品的影响。

Services need to be more effectively organised than they are at present.

服务的管理应该比现在更加有效。

Well, at present we won't speculate on hypotheticals.

嗯，目前我们不想去推测那些假想的东西。

There is no way at present of predicting which individuals will develop the disease.

目前还没有办法预测谁会得这种病。

At present nobody understands why these three quarks which are in the proton are bound together.

目前还没有人知道质子里面的这三个夸克为什么会结合在一起。

It may be stating the obvious, but most teleworking at present is connected with computers.

这一点或许人人皆知，但当前大部分远程办公都离不开计算机。

I pushed the problem aside; at present it was insoluble.

我把问题抛在一边，目前它还无法解决。

At present, we are witnessing another building boom.

当前，我们又一次处于建筑繁荣期。

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.

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.

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.

She opened the book at random and started reading.

她随意翻开书就看了起来.

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.

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.

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.

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.

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.

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.