a human fetus whose weight is less than 0.5 kilogram when removed or expelled from the mother's body
An instrument for ascertaining the weight or density of air and gases.
The science of weighing air
having little or no perceptible weight
the property of something weightless and insubstantial n
absolute atomic weight
[电] 绝对原子量
absolute dry weight
[机] 绝对干重, 绝对净重
absolute weight
[机] 绝对重量
acid weigher
[机] 酸称
acid weighing tank
[化] 称酸槽
add the weight
[化] 增加重量
added weight method
[机] 加重计算法
adhesion weight
[机] 粘附重量
adjustable weight
[化] 可调节权
aggregative weighted index
[经] 综合加权指数
air weight control
[机] 熔铁炉, 自动控制装置
air weight controller
[机] 风量控制仪
air-dried weight
[机] 气干重量
all-up weight
飞机在空中总重量[经] 总重量
all-up-weight
[化] 最大载荷
analytical weights
[化] 分析砝码
anomalous weight
[机] 反常重量
apothecaries weight
[医] 药用衡量
apothecaries' weight
药衡制(重量单位)
apothecary weight
[医]药衡制计重