[化学]?定组成定律
... law of conservation of matter 物质守恒定律 law of definite composition 定组成定律 law of definite proportion 定比定律 ...
?成分不变定律
... law of cyclic associativity || 循环结合律 law of definite composition || 成分不变定律，定组成定律 law of definite proportion || 定比定律 ...
?定比定律
... law of decreasing returns ==> 报酬递减法则 law of definite composition ==> 定比定律 law of definite proportion ==> 定比定律 ...
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。