The chief source of all this passion is that thought for what is absent and future, which, with man, exercises such a powerful influence upon all he does.

这种激情的主要来源是对所缺少的和未来的思考，这种思考和人一起，对他所做的一切产生了如此强有力的影响。

People regard the sun as the chief source of heat and light.

人们认为太阳是主要的热源和光源。

The chief source of livelihood of lesser dignitaries was petty office and graft.

较小头头的主要生活来源，是占据一个小职位，收点贿赂。

Personal banking is the chief source of profits for commercial banks in the West .

在西方，个人银行业务是商业银行最主要的利润来源。

The chief source of methane is natural gas, but it can also be produced from coal.

甲烷的主要来源是天然气，但也可以用煤来生产。

As the chief source of news for most Americans, it has enhanced-and exaggerated-the power of the mass of media.

作为大多数美国人的主要消息来源，电视增强和夸张了大众媒体的力量。

The content of radioactive radium in mineral was 19 times higer than that in rock and served as a chief source of radon.

矿石样品放射性镭含量比岩石样品高19倍，为井下氡气的主要来源；

The term "Common Heritage of Mankind" was the chief source of confusion and uncertainty in the outer space legal regime.

“人类共同继承遗产”是外层空间法律体制存在疑问和不确定性的主要原因。

The first shipment of this tobacco reached London in 1614. Within a decade it had become Virginia's chief source of revenue.

自从1614年第一批烟草被船运到伦敦，在十年里，它已成为弗吉尼亚的主要财源。

The Jordan River is the chief source of the incoming water, but since the 1960s much of its water has been diverted for irrigation.

约旦河是进水的主要来源，但自从60年代，大部分的水已被改用于灌溉。

The mathematical textbook is the chief source of teaching and studying, and relates to the quality of the mathematical education.

而教材是教与学的蓝本，关系着教育效果的优劣。

The chief source of uncertainty, though, is on the supply side-in particular, the troubled outlook for a host of planned new plants in Asia.

然而，不确定的主要来源在供应这边，特别的，亚洲大量计划的新工厂的困难前景。

Blogs were considered the "coolest" modern communication medium, but magazines remained popular and the chief source of fashion information.

博客被认为是“最酷”的现代交流手段，但杂志仍然很受欢迎，被认为是时尚信息的主要来源。

This made him extremely unpopular with his fellow townsmen because the pilgrimages to the Kaaba were the chief source of such prosperity as Mecca enjoyed.

这种做法使得他那个小城的市民对他极其反感，因为天房的朝圣者是麦加如此繁荣的主要来源。

Discusses the origin, features and functions of the source of information in description and studies the reasons for cancelling the chief source of information.

在总结著录信息源的产生、特点及作用的同时，重点论述取消主要信息源的概念及有关规定的理由。

The non-standard behaviors of real estate enterprises, Banks, and participants of market environment are the chief source of the financial risks of the industry.

房地产企业、银行与市场环境参与者行为的不规范是房地产金融风险的主要来源。

The formation and development of fault impact the distribution and thermal evolution degree of chief source rock, form kinds of traps , and provide good migration channel.

断裂的形成和演化影响主力烃源岩的分布和热演化程度，形成多种类型的圈闭，为油气运移提供良好的运移通道。

Since a chief source of pollutants is automobile emissions, it might be expected that pollutant levels could be correlated with automobile traffic, at least to some extent.

因为污染物的主要来源是汽车的排出物，所以可以料想污染物的浓度至少在某种程度上是与汽车运输有关。

The main source of illumination is called the key light. The key light is frequently supplemented by subsidiary lighting. The chief source of light for outdoor shooting is sunlight.

主要光源称为主光。主光常常用辅光作补充。室外拍摄的主光为阳光。

China is Mongolia "s chief export partner and a main source of the" shadow "or" grey "economy."

中国是蒙古国主要的出口对象没，也是“灰色经济”和“影子经济”的主要来源。

High praise from a respectable source, and worth remembering as Gore continues in his new role as Chief Environmental Evangelist.

这是来自权威声音的高度肯定。戈尔值得被记住，尤其是当我们看到他又开始扮演起“首席环保鼓吹者”的新角色之时。

Health chief York Chow said there was no sign yet that the virus has been spread between humans and that investigations were focusing on poultry as being the source of the infection.

卫生部最高长官York Chow说现在还没有迹象显示该病毒已在人群中扩散，并且声称调查正集中在作为感染源的家畜身上。

As the chief power source for vehicles, it began replacing both horses and steam for planting, cultivating, and harvesting equipment.

作为各种交通工具的主要发动源，内燃机开始取代了马匹和蒸汽，作为人们种植、培育和收割的工具。

Jonathan Powell, Blair's former chief of staff, has been taking soundings across the EU. But the Whitehall source said: "Jonathan ain't enough."

布莱尔的前参谋长乔纳森·鲍威尔(Jonathan Powell)一直在欧盟打探消息，但那名消息人士说：“乔纳森一个人是不够的。”

Reducing the source consume, and prolonging the WSN lifecycle is becoming the chief target of WSN, which was based on the assurance of Network Secure Communication.

在保证网络安全通信的基础上，尽量减少网络的能源消耗、延长网络生命周期已经成为无线传感器网络通信的首要目标。

The Scholastics maintained that because the same God was the source of both types of knowledge and truth was one of his chief attributes, he could not contradict himself in these two ways of speaking.

经院学者认为上帝是这两种知识的源泉，真理是他的主要属性，因此他不可能在两种表达方式上自相矛盾。