(n) (chemistry) law stating that the proportions in which two elements separately combine with a third element are also the proportions in which they combine together, Syn.law of reciprocal proportions
(n) (chemistry) law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple multiple relation, Syn.Dalton's law
(n) (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight, Syn.law of definite proportions
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เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
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