All uranium atoms do not have the same atomic weight.
并非所有的铀原子都有相同的原子量。
A hydrogen molecule consists of only two hydrogen atoms with the same atomic weight.
氢分子仅由两个原子量相同的氢原子组成。
An arrangement of 56 elements in order of ascending atomic weight made by Newlands in 1863.
1863年，纽兰茨所作。他将56种元素按原子量上升次序排列。
Isotopes are different varieties of the same element, which have identical chemical properties but differ in atomic weight.
同位素是同一元素的不同种类，它们有着相同的化学特性但是原子重量不同。
Periodic table (1869) : Organized array of all the chemical elements in approximately increasing order of their atomic weight.
周期表(1869)：所有的化学元素按它们的原子量逐渐增加的顺序有组织地排列。
Abstract It was commented on significant figures of mole mass of Zinc Oxide and relative atomic weight in calibrating for EDTA standard volumetric solution in GB/T 601–2002.
标准滴定溶液的标定是其浓度的量值溯源，GB／T 601–2002［1］通过规定工作基准试剂摩尔质量的有效数字，减少因数字修约而引入的不确定度。
Abstract It was commented on significant figures of mole mass of Zinc Oxide and relative atomic weight in calibrating for EDTA standard volumetric solution in GB/T 601–2002.
标准滴定溶液的标定是其浓度的量值溯源，GB／T 601–2002［1］通过规定工作基准试剂摩尔质量的有效数字，减少因数字修约而引入的不确定度。
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