When catalytic converters were developed, the petroleum industry had to make gasoline lead-free.

All new petrol cars must be fitted with catalytic converters to control emissions.

所有新的汽油车辆必须装置催化转换器,以限制废气排放.

Yet another process uses the leftover bacteria to recycle expensive palladium metal from catalytic converters.

然而,另一过程利用剩余的细菌循环再造触媒转换器中昂贵的钯金属.

Tetraethyl lead worked leaded gasoline but was phased out because It'spoiled catalytic converters.

汽油中的四乙基铅效果不错,但已经逐渐淘汰,因为它会破坏触媒转化器.

The reaction is catalysed by a transaminase or an amino transferase ( the terms are synonymous ).

反应是由转氨酶或氨基转移酶? ( 同义名词 ) 催化的.

The reaction adopted strong-acid cation exchange resin catalysed phthalic anhydride and butyl alcohol.

催化邻苯二甲酸酐与正丁醇的酯化反应.

The addition reaction with hydrogen cyanide is base-catalysed.

与氰氢酸的加成是碱催化的.

The activities of palladium catalysed cross coupling reactions of substituted bromobenzenes were studied.

分析了温度、化剂、同取代基团对取代溴苯发生钯催化偶联反应活性的影响.

Diels-Alder reaction of 2-merhylene-1-pheny 1-1.3-butanedione catalysed by zinc chloride as lewis acid with 1.3-cylcopentadiene was reported.

以氯化锌为路易斯酸催化剂,探讨了2 ─ 亚甲基─1 ─ 苯基 ─ 1.3 ─ 丁二酮与1.3 ─ 环戊二烯的Diels─Alder反应.

Catalysed water contains free formed, formaldehyde is a carcinogenic substances harmful to human health.

催化型水性上光油中含有游离甲醛, 而甲醛是一种致癌物质,对人体健康有害.

Catalysed water General s 841008 heating device for drum business card printing and membership card-making machine.

催化型水性上光油一般在带有加热装置的卷筒制卡和会员卡制作机中使用.

Catalogues of our books will be mailed on request.

书目承索即寄.

Catalogues of our books will be sent on request.

书籍目录承索即寄.

He wrote away for some catalogues.

他去信索要一些目录.

Our business scope includes hardcover, catalogues, top-grade magazines and high-tech product manuals etc.

公司业务范围包括:精装书刊 、 目录 、 高档 杂志及高科技产品说明书等.

Catalogues are available on request.

备有目录供索取.

Catalogues will be sent on application.

目录函索即寄.

I once bought a thingummy out of one of those catalogues.

我曾经买过那些目录里的一样东西。

This would enable the production of subset catalogues by subject.

这将使按主题编制子集合目录成为可能.

Why don't we have our catalogues printed in several languages?

我们在印刷目录时,为什么不多用几种语言 呢 ?

She wrote off for some catalogues.

她写信索取一些目录.