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The Chlorohydrin process produces large amount of wastewater, which results in serious equipment corrosion and environmental pollution.

在修饰的银催化剂上可获得一定的环氧选择性，特别是发现一些经过特殊方法制备的铜催化剂显示丙烯环氧化活性和选择性。

However the chlorohydrin route generates chlorinated by-products, mainly dichloropropane and CaCl_2, which results in equipment erosion and serious environmental pollution, while the co-production route needs large investment and its economic benefit is linked to market of the by-products, namely styrene or tert-butyl alcohol.

氯醇法设备腐蚀和环境污染严重，共氧化法设备投资巨大且受到联产物——苯乙烯或叔丁醇销路的制约。1983年，Taramasso首次报道了钛硅分子筛(TS-1)的合成，为低碳烯烃选择氧化开辟了一条新的途径。

Recent years, the Chlorosis of kiwifruit, a kind of physiological disease, became widespread and serious in Shaanxi province.

猕猴桃黄化病是近几年陕西省猕猴桃主栽区发生比较普遍、危害比较严重的一种生理性病害。

In the most serious incident before the weekend's attack, police were told that an 11-year-old choirboy had been attacked by two young boys after being lured to an isolated spot.

在周末之前的最严重的事件中，警方被告之一个十一岁的唱诗班儿童被两个年轻男孩引进死胡同后遭到袭击。

And, perhaps, it is a prelude for more serious and dangerous actions in the near future, above all a naval blockade of Iran to choke off its access to, among other things, imported fuel.

以及，也许，这是一个前奏，对于较严重和危险的行动，在不久的将来，上述所有的海上封锁，伊朗切断其接入，除其他事项外，进口燃料。

With the change of international structure and the domestic rapid growth, oil becomes the most serious choke point that restrains China's development.

随着国际格局的变化及中国国内的快速发展，石油能源成为了制约当今中国经济发展最大的瓶颈。

Objective:To explore the effective way for treating senile acute serious cholangitis.

目的：探讨提高老年重症胆管炎治愈率的有效方法。

This has led to serious environmental and health hazards; typhoid, cholera and tuberculosis.

这导致了严重的环境和健康的危害；伤寒，霍乱和结核病。

Cholera, a serious health problem in many parts of the world, results from a bacterial infection.

霍乱的严重健康问题，世界上许多地方，结果由细菌感染。

"We called him in and he diagnosed my trouble as a choleric humour I'd brought from the womb , but which thanks to my good constiturion wasn't too serious."

"因请他看了。他说我这是从胎里带来的一股热毒，幸而先天壮，还不相干"

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失