[物]原子量
n.原子量，各种元素原
Electrons weigh very little, so they aren't even counted in the atomic weight.───电子非常轻, 因此在原子量中甚至没有计算它.
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.
Hydrogen is the lightest element with an atomic weight of 1.008.───氢是最轻的元素,原子量为1.008.
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。
Atoms of the same element that differ in their atomic weight are called isotopes.───具有不同原子量的同一种元素被称为同位素.
All uranium atoms do not have the same atomic weight.───所有的铀原子并非都有相同的原子量.
Who knows the atomic weight of the hydrogen atom?───谁知道氢原子的原子量究竟是 多少 ?
An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of 2.04.───氢的一种同位素，在其原子核内有一个质子和一个中子，其原子重量为2.04。
The atomic weight is a ratio quite distinct from the weight in grams.───原子量是与以克为单位的重量完全不同的比率.
A microscale experiment using simple instrument was applied to the determination of Cu atomic weight.───利用自制的简易气体发生器和洗气装置对铜原子量测定微型实验作了进一步的探索与实践.
atomic weights───[物]原子量
gram-atomic weight───克原子量
atomic heat───原子热
atomic weapon───[军][核]原子武器
basic weight───基本重量
to weight───重量
total weight───总重量；设备总重
gram-atomic weights───克原子量
atomic weapons───[军][核]原子武器