The absence in theory prevents environmental law going a advantage situation and therefore resulted in many problems both in the legislation and the law enforcement fields.

而现代环境立法缺乏法学理论的有力支撑，造成了环境法律在立法和司法各个环节上的不利状况。

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This article analyzes the origin of the study of economic law and the economic legislation. It also analyzes the causes of the absence of the past study in this aspect.

该文首先围绕经济法学的产生、经济立法两个话题，分析学科过往研究上的缺陷及其原因。

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But that prospect seemed unlikely, and the Republican-controlled House of Representatives is unlikely to initiate any gun-control legislation in the absence of a Senate-passed bill.

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Still, even in the absence of legislation, French politicians are adept at discouraging cross-border mergers in this area.

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In the absence of legislation, however, the courts have proceeded with these cases.

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