occurring

There will come a time when the crisis will occur.

危机总有一天会爆发。

No one has suggested how this might occur

没人说得清这事是怎么发生的。

The oil is attacked by naturally occurring microbes which break it down.

原油受到了自然产生的分解油类物质的微生物的侵蚀。

A biotechnology company is developing a range of new pesticide based on naturally occurring toxin.

一家生物工艺开发公司正在根据自然滋生毒素的原理研制新型农药系列产品.

If headaches only occur at night, lack of fresh air and oxygen is often the cause

如果只是在晚上头疼，那常常是由于缺乏新鲜空气和氧气的缘故。

Traffic accidents are occurring thick and fast in the area.

这一地区频频发生交通事故.

They are talking about some technical terms often occurring in business documents.

他们谈到一些在商业票据中经常出现的术语.

Changes in temperature occur slowly and are constrained within relatively tight bounds.

温度变化缓慢，而且局限在相对较小的范围内。

Oil is refined to remove naturally occurring impurities.

油经过提炼去除天然存在的杂质。

High levels of nitrate occur in eastern England because of the heavy use of fertilizers.

英格兰东部因大量使用化肥导致土壤硝酸盐浓度过高。

The rock varies in color: white, buff, brown, black, and green varieties occurring.

岩石在颜色上有多种变化,有白色 、 淡黄色 、 棕色 、 黑色及多种绿色变种.

Naturally occurring rock oil is referred to as crude oil or petroleum.

天然形成之石油,我们称作原油或石油.

At times we saw this occurring at Matsushita as well as at ITT.

我们多次在松下和国际电话电报公司看到这样情况.

About two in every five epileptic fits occur during sleep

每5例癫痫病中约有两例是在睡眠过程中发作的。

It did not occur to me to check my insurance policy

我没有想到要核实我的保险单条款。

In-flight winds are occurring above a height of 150 meters.

飞行风是150米高度以上出现的风.

The main property changes occurring during dehydrochlorination are: hydrogen chloride evolution , coloration, and embrottlement.

脱氯化氢降解过程中的主要性能变化是: 释出氯化氢, 变色和变脆.

If these drugs are stopped abruptly then some withdrawal symptoms may occur.

如果突然停服这些药，则可能出现一些戒断症状。

Rattlesnakes occur in the warmer, drier parts of North America.

响尾蛇出现在北美温暖干燥的地区。

Such events occur only when the external conditions are favorable.

这种事情只有在外部条件有利时才会发生。

I do not think any reason you undertake of all faults to the thing of occurring.

我想不出你对所发生的事承担全部过错的任何理由.

Organic chemistry embraces both naturally occurring substances like proteins, carbonhydrate, fats and " essential oils ".

有机化学既包括自然存在的物质如蛋白质 、 碳水化合物 、 脂肪及 “ 香精油 ”.

I have known dramatic changes occur in the space of a few minutes with this method.

我知道用这种方法短短几分钟之内就能够产生急剧的变化。

The two substances are now in contact ( with each other ), and a chemical reaction is occurring.

现在这两种物质 ( 互相 ) 接触产生了化学反应.

Although it is predominantly a teenage problem, acne can occur in early childhood

虽然粉刺多发于青少年时期，但也可能在刚进入童年时期就出现。

Lactose is the main carbohydrate occurring in milk.

乳糖是乳的主要碳水化合物.

When exactly did the incident occur?

这一事件究竟是什么时候发生的？

After 19 May, strikes were occurring on a daily basis

5月19日之后，每天都会发生罢工。

The chances of an error occurring in a computer program increase with the size of the program.

计算机程序越长，出错的概率也越大。

Emergency cooling systems could fail and a reactor meltdown could occur.

紧急冷却系统有可能失灵，核反应堆有可能发生堆芯熔毁。