Discovered in 1886, germanium became economically significant after 1945, when its semiconductor properties were put to use in electronics. It remains of primary importance in the manufacture of transistors and of components for other devices such as rectifiers and photocells.

1886年发现;1945年以后,当人们认识到了锗的半导体性质在电子学中的价值后,锗才逐渐成为具有重要经济意义的材料。至今,仍是制造晶体管、整流器和光电池的重要材料。

AGC systems are capable of assigning the governing burden (controlling response)economically among many units at various plants, so that each plant and\or unit takes only an assigned share of the controlling response.

AGC系统能在不同电厂的许多机组中经济地分配负担(控制响应),使每个电厂或机组仅控制所分配到的这部分控制响应。

Owing to the superiority of cleaning action, in any wash cycle it needn’t use more, as with a suitable measured amount of the powder it will serve efficiently and economically .

本品由于其洗净力强,不必使用多量,恰当计量,可获经济收益。每次只须用一平小匙就可发挥特效洁力,将洗衣机内的衣物洗净。

The city, both in its inner life and outer relations, deeply affected colonial society politically, economically and culturally

城市的精神生活和对外关系深深地在政治上、经济上、文化上影响了殖民地的社会。

Hydrogen can be effectively and economically recovered from the refinery gas by cryogenics, pressure swing absorption, or semipermeable membranes

从炼厂气生产氢气,可以通过深冷法、压力回转吸收法和半(渗)透膜法,既

The biggest payoff epidemiologically and economically is in secondary prevention

从流行病学和经济学的角度来看,最大的收益是防止疾病的继发。

active population (=economically active population)

从事经济活动人口;在业人口

China today is politically stable and economically prosperous.

当今的中国,政治稳定,经济繁荣。

As a pretreatment method before aerobic biological treatment of printing and dyeing wastewater, anaerobic baffled reactor is feasible both technically and economically .

挡板式水解酸化法作为印染废水好氧生物处理的前处理在技术上和经济上都是可行的。

By 1770 the North American colonies were economically and politically ready to become part of the emerging self-government movement

到1770年,北美的殖民地从经济和政治上参加新兴的自治运动的条件已经成熟。

At that time, when we are strong economically , we shall be able to spend more money on updating equipment.

到那个时候我们经济力量强了,就可以拿出比较多的钱来更新装备。

The reason is very simple. Ours is an economically backward country with a population of one billion.

道理很简单,中国十亿人口,现在还处于落后状态

A process where the conformity of the resulting product cannot be readily or economically verified is frequently referred to as a “special process.”

对形成的产品是否合格不易或不能经济地进行验证的过程,通常称之为“特殊过程”。

On the basis of the basic universalization of the nine-year compulsory education, higher middle school education will be universalized gradually in large and medium-sized cities and economically developed areas

儿童教育在基本普及九年义务教育的基础上,大中城市和经济发达地区有步骤地普及高中阶段教育

To isolate politically or economically .

隔离,使孤立政治或经济上使孤立

Precious metals tend to occur as scattered particles randomly distributed, so a large sample of ore is required. Such large samples (typically containing gold, silver, and lead)are still most economically assayed by this ancient method, which involves several steps of heating and cooling.

贵金属因分散颗粒无规则地分布,分析时需要取用大量矿石样品。这类含有金、银和铅的大量样品用火焰法作试金分析最为经济,该法包括加热和冷却的许多步骤。

The State shall support and promote the development of foreign trade in national autonomous areas and economically under-developed areas.

国家扶持和促进民族自治地方和经济不发达地区发展对外贸易。

Haber-Bosch process(Haber ammonia process,synthetic ammonia process):First economically feasible method of directly synthesizing ammonia from hydrogen gas and atmospheric nitrogen.

哈伯-博施法(亦称哈伯制氨法或合成氨法):用氢和空气中氮直接合成氨的方法。

The Air Services are not yet sound enough economically to operate without government subsidies

航空公司还不景气,没有政府的补贴就难以经营。

A central region,especially one that is politically,economically ,or militarily vital to a nation.

核心地带尤指对一个国家的政治、经济或军事有重要作用的中心地区

Many important chemical engineering applications involve mass transfer, distillation for example, surely one of the most economically important processes.

很多重要的化学工程的实用场合包含着质量传递,例如精馏,无疑是一个具有十分重要的经济意义的过程。

Most of the stone relief have been found in economically and culturally developed areas with plentiful stone materials.

画像石大多集中在经济富庶,文化发达、附近石料充足的地区。

While everyone agrees that companies that respond with generous promises are acting both ethically and economically , few people usually find out whether these companies follow up on their promises.

几乎每个人都觉得这些作出慷慨承诺的公司的行为既是道德的,也是经济的,很少会有人去跟踪这些承诺是否兑现。

Now that we have the extra resources, the project seems economically feasible.

既然我们还有额外的经费来源,这个计划在经济上似乎是可行的。

Yeast: Any of certain economically important and usually single-celled fungi, most of which are classified as ascomycetes.

酵母菌某些有经济意义的单细胞真菌,多属子囊菌纲,少数属担子菌纲。

Tertiary reactors can be economically switched as system reactive power requirements and voltage profiles vary.

接在第三绕组上的电抗器可根据系统无功的要求以及电压分布的变化而经济地投切。

Little she knew of the steely face the world presents to those who have not been practically trained and are not economically efficient

她不知道世界对于没有受过实际训练和没有经济力量的人们的冷酷的面孔。

She cooks very economically .

她做菜很节省。

It's not enough for us simply to be the strongest nation militarily the strongest economically and also to have firm diplomacy we must have a great goal,and that is not just to keep freedom for ourselves,but to extend it to all the world.

仅仅成为头号军事强国、头号经济大国,同时有强硬的外交政策并不够,我们必须有一个伟人的目标,就是:不仅自己把握自由,还要把它推广到全世界。

An economically impractical plan

经济方面不切实际的计划

use economically

经济地使用

economically feasible

经济可行

economically feasible

经济上可行的

economically developed

经济发达

economically recoverable

经济可采储量

economically independent

经济独立

economically active person

从事经济活动的人士

economically recoverable oil

工业性可采石油储量

economically recoverable oil

经济上可采油量

economically unsound project

经济上不合算的项目

economically advanced country

经济发达国家

Economically-developed region

经济发达地区

held economically responsible

负经济责任

economically active population

从事经济活动的人口

economically active population

经济上活动人口

Economically invigorating region

经济活跃地区

economically inactive population

非从事经济活动的人口

ability to shoulder economically

经济承受能力

economically inactive population

经济不自立的人口

economically inactive population

经济上非活动人口