是固定用法，表示没有必有的意思。
“做……有困难”，固定用法。
我经常使用“城市词典”来研究大量词汇固定用法之外的俚语用法。
I often use Urbandictionary to research slang USES of otherwise staid and respectable words.
中吉两国在2003年签署了睦邻友好合作条约，这一条约把两国关系用法律文件的形式固定下来。
In 2003, the two countries signed the treaty on good-neighborliness, friendship and cooperation, which fixed the relations between the two countries in the form of a legal document.
方音、词汇用法和语法的各个方面在第二语言或外语学习中会成为固定或僵化。
Aspects of pronunciation, vocabulary usage, and grammar may become fixed or fossilized in second or foreign language learning.
在当前的理论用法中，该词指的是名称不再表示固定不变的意义的看法。
In current theoretical usage, the belief that names signify nothing fixed or consistent.
用年经常费用法对几种冷热源方案的年固定费用和年运行费用进行了计算比较。
Based on the calculation of annual fixed expenditure and annual running cost, compares some heat and cold source schemes with annual current expenditure method.
第四部分是设想用法律的形式把举证责任转移的规律固定下来，即程序化设计。
The fourth part of the law envisaged by the burden of proof in the form of transfer of fixed laws, that is, the design process.
固定式泵进出口一般用法兰式；移动式泵进出口一般用束节式。
Solid deciding type pump imports and exports generally use Lan Shi The mobile pump imports and exports are generally with Shu Jieshi .
与此同时，《煤炭法》进入修改程序，修改的基本目的是将煤炭资源整合的成果用法律形式固定下来。
In the same period, the law of coal started the revision process, the objective of which was to write the achievements of the coal resource integration into law.
与此同时，《煤炭法》进入修改程序，修改的基本目的是将煤炭资源整合的成果用法律形式固定下来。
In the same period, the law of coal started the revision process, the objective of which was to write the achievements of the coal resource integration into law.
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