主源；第一手来源

primary source───主源；第一手来源

primary cares───初级治疗，初级护理；基层医疗

primary focus───[光]主焦点；优先考虑

primary stress───主重音

primary producers───初级生产国；初级生产者

primary insurers───主要保险公司

primary producer───初级生产国；初级生产者

Speidel provides a substantial bibliography with extensive primary sources.───斯派德尔提供了大量的参考书目与广泛的主要来源。

One of the primary sources of bugs occurs when variables change states.───变量状态改变是产生bug的一个主要来源。

Perhaps linking to primary sources would just be too embarrassing.───大概链接第一手资源使人太尴尬了。

Milk is one of the primary sources of vitamin D for most kids, and it has been a growing trend for kids to not drink milk each day.───对于大多数儿童而言，牛奶是维他命D的主要来源，现在不喝牛奶的孩子日趋增多。

Oil and coal are the primary sources of carbon dioxide, one of the main gases responsible for trapping heat in the atmosphere.───石油和煤炭是大气中热量的主要来源，二氧化碳捕获负责的主要气体之一。

Colonization of the lower GI tract and indwelling catheters have been thought to be the primary sources of systemic infection with Candida.───殖民化，降低胃肠道和留置导管一直被认为的主要来源全身感染念珠菌。

Your paper must draw on at least two primary sources, as well as at least four secondary sources.───论文须用到至少两种原始文献和四种二次文献。

Hands down, this deficiency is one of the primary sources of confusion for developers learning to use JSF.───这也是学习使用JSF的开发人员容易感到困惑的主要原因之一。

Poorly designed indexes and a lack of indexes are primary sources of database application bottlenecks.───索引设计不佳和缺少索引是提高数据库和应用程序性能的主要障碍。

Primary data is data obtained from primary sources, ie directly in the marketplace.

One difficulty of primary sources is that a purist definition tends to suggest that the writer has personally collected the information.

The primary sources indoors are combustion processes, such as unvented combustion appliances, e. g. gas stoves, vented appliances with defective installations, welding, and tobacco smoke.

If we define them simply, primary sources are those written at the time by some one usually connected with the event.

The two primary sources of data on smoking habits are the General Household Survey and surveys conducted by the tobacco industry.

Quercus variabilis is one of the primary sources of industrial cork in China.

Second, they have always been the primary sources of strength and support in times of trouble.

The historian searched for primary sources of information about the past.

Researchers try to quote primary sources wherever possible.