minor constituent

Carbon dioxide is a minor but important constituent of the atmosphere, averaging about 0.03% or 300 ppm by volume.

二氧化碳是空气的含量较小但很重要的组成成分，体积比平均约为0.03%或300ppm。

The method is proved to be correct and effective in determining the major and minor constituent elements by a case analysis.

通过一个案例证明利用该方法能够准确、有效地确定供应链响应时间的主要构成因素与次要构成因素。

Decorative article, for personal adornment or interior decoration, incorporating precious or semiprecious stones, not containing precious metal, except as minor constituent

装饰品，供个人或室内装饰用，装有宝石或半宝石，不含贵金属，除非作为次要成份

Chlorogenic acid, also a phenolic compound, is a minor constituent in tea.

同属酚类化合物的绿原酸在茶叶中是次要成分.