和常规铁路相比，高速铁路对基床表层功能的要求更加严格。
The functional requirements on surface layer of foundation bed for high-speed rail-ways are rather more strict than for ordinary railways.
然而在实践中，我们发现声道的功能早在手术前就没有了，更换表层本身可能会引发声道永久失衡。
In practice, however, we found that function in the canal is often diminished before surgery, and replacing the covering itself may lead to inactivation of the canal anyway.
该深层结构多半可以通过单位词的转换功能映现为主动句或被动句的表层结构。
The deep structure can mostly be presented as the surface structure made up of an active sentence or a passive one, by means of the unit noun characteristic of transformation function.
表层岩溶带对岩溶水的调蓄功能大小主要与表层岩溶带的结构、岩层产状、地表覆盖情况和降雨性质有关。
However, the regulation functions to karst water depend on the structure of the epikarst zone, occurrence of strata, land cover and rainfall intensity.
混交林表层土壤蓄水功能最好，其他林分各层次差异较小；
Soil retention capacity of surface layer is the best in the mixed forest, while differences are little in other forests.
前者可能反映了全球气温升高的影响，而后者则反映出表层岩溶系统对大气CO2具有良好的调节功能。
The former possibly reflects the influence of global warming, while the latter shows that the epikarst system acts as a good adjuster to atmospheric CO2.
前者可能反映了全球气温升高的影响，而后者则反映出表层岩溶系统对大气CO2具有良好的调节功能。
The former possibly reflects the influence of global warming, while the latter shows that the epikarst system acts as a good adjuster to atmospheric CO2.
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