investigation on a case of welder's chronic manganese poisoning

thirty the big three-o .

30岁30是个 而立之年.

he switched over to teaching in mid-career.

他在 而立之年 转入教学工作.

the runners are loosening up before the race.

赛跑运动员们在做赛前准备动作.

the best and quickest way to help her quit the drug is to go cold turkey.

帮助她戒掉毒品的最佳且最快的方法是彻底戒毒。

he placed a bet on the fastest horse in this exciting race.

他在这场激动人心的比赛中对最快的马下了赌注。

the reigning world racing champion clocked the fastest lap in the final practice session today.

现任世界赛车冠军在今天的最终训练环节中跑出了最快的单圈成绩。

speedy three-to-five day cruises represent the most expanding segment of the market.

3至5天的快速乘船游览代表了该市场中扩张最快的部分。

she believed that to hitchhike would offer the quickest route to flee.

她相信搭便车会提供最快的逃离路线。

the content of trace elements in tea and its extraction liquid was determined by atomic-absorption spectrometry.

采用原子吸收分光光度法测定了茶叶及其浸泡液中微量元素的含量.

summer pasture gain of yearling cattle

一岁牛夏季放牧增重

the entire foam sheets have to be rotated to follow the curved separation line.

整个泡沫板都必须轮流跟随弯曲隔离线.

however, the relative permeability to water was significantly reduced.

然而, 水的相对渗透率将明显减小.

two methods are used to evaluate the permeability of cores.

有两种方法可用来测量岩芯的渗透率.

the precision of calculating permeability can hardly be achieved by traditional methods.

用传统的解释方法计算渗透率很难达到理想的精度.

the smaller the permeability, the bigger the start-up pressure gradient.

渗透率越小, 启动压力梯度越大.

permeability and its distribution are very critical for effective reservoir characterization.

渗透率和渗透率分布对于有效的储层描述来说是至关重要的.

it also reflects the shadow of the original totem worship.

这其中也折射出原始图腾崇拜的影子.

please move counterclockwise in a circle!

请逆时针做圆周运动.

but small as it is, it can cause circular movement.

尽管这个差距很小, 但结果却导致了圆周运动.

the price also moves around the 360 degree circle.

价格仍将盘绕360度圆周运动.