英语翻译Mendeleev arranged the known elements in order of increa

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英语翻译
Mendeleev arranged the known elements in order of increasing atomic weight （molar mass）
请问这句话后面的increasing atomic

在物理中,mass = 质量；weight = 重力.两个概念是严格区分的.
在化学中,atomic weight = atomic mass = 原子量,mass与weight是不分的.
原子量 = number of protons and neutrons = 原子内的质子数与中子数之和
= number of nucleons = 原子内的核子数.
increasing atomic weight = 按照递增规律排列的原子量.
Mendeleev arranged the known elements in order of increasing atomic weight （molar mass）
= 门捷列夫按照(当时)已知的元素按照原子量递增的规律排列起来(摩尔质量)

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