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| chemical make-up | |||
| elementary composition | |||
| chemical composition | |||
| chemical component (substance) | |||
| chemical composition The nature and proportions of the elements comprising a chemical compound (化合物的元素组成的性质和比例。) | |||
| chemical constituent | |||
| analyses (analysis 的复数); chemical component; chemistry; elemental composition (组成) | |||
| chemical constitution | |||
| chemical components | |||
| chemical constituents | |||
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| chemical composition; chemical constitution | |||
| elemental composition | |||
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| chemical constitution | |||
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| elemental composition | |||
| 化学成分: 101 phrase in 17 subjects |