chemical analysis

基本解释

We know the constitution of mineral through chemical analysis.
经过化学分析，我们知道了矿石的构成。
Chemical analysis of residues found on fragments of pottery vessels recovered from the site tested positive for theobromine, a compound found in cacao trees that were limited to Central America.
从这个遗址中恢复的陶制容器碎片的化学分析中，测定到其中的确含有那时仅在中美洲存在的可可树中的一种化合物——可可碱。
So if you found another star with a pale-blue dot tooling around that yellow star, that blue color and chemical analysis of the planet might give us a strong suggestion of life.
因此，如果你要找到另一颗在黄色恒星附近的浅蓝色的点。这种蓝色和行星的化学分析将会给我们生命的强烈暗示。

Now, the differences here may be subtle in terms of chemical composition or if you put these cells under a microscope and looked at their analysis.
干细胞与祖细胞化学成分的区别,还非常微小,除非你把细胞放在显微镜下,或者看细胞分析报告
耶鲁公开课 - 生物医学工程探索课程节选

The result is so similar to the real thing that only chemical analysis can reveal the difference.
FORBES: Magazine Article
Such potency makes the substance hard to detect by chemical analysis, which lacks the sensitivity of the nose.
ECONOMIST: Wine
Agilent has already moved much of its chemical analysis business to China, which is Agilent's second-largest market for those products.
FORBES: Agilent Settles Down For A Change

化学分析
So the nitrogen status of a crop is the best indicator for diagnosis nitrogen nutrition. The mostly traditional methods for diagnosis nitrogen nutrition of rice is chemical analysis based on vegetation tissue.
传统的水稻氮素营养诊断方法主要是基于植物组织的实验室化学分析。
化学法

化学分析
The validity and availability of phosphorus in sandy soil was systematically studied using chemical analysis, bio- adsorption test and biological diagnoses.
应用化学分析、吸附试验和生物诊断方法，系统研究了风沙土磷的有效性和利用率。
计算机科学技术
化学成分