矿物燃料的成分随来源、种类和精选程度而变化。
The composition of fossil fuels varies with source, type, and degree of refinement.
经调整的PRMR估算值与目前从各种数据来源获得的孕产妇死亡率的估算值基本上一致，比较情况随来源不同而变化。
The adjusted PRMR estimates are broadly consistent with existing estimates of maternal mortality from various data sources, though the comparison varies by source.
有些公司依赖于名称空间来帮助组合来自不同来源的 XML 数据，随业务需求的变化而更新 XML 模式，以及促进文档的重用。
Some firms rely on namespaces to help them combine XML data from different sources, to version XML schemas as business needs evolve, and to promote document reuse.
应用推荐