空气没有多少重量。
Air not only occupies space but it also has weight.
空气不仅占据空间，而且它还具有重量。
Water has weight, and air also has weight.
水有重量，空气也有重量。
In aerodynamic terms, lift is a function of weight, thrust and drag (air resistance).
在空气动力学上，升力是重量，推力和阻力(空气阻力)的相关的函数。
Atmospheric pressure is the weight of all that air against the surface of the earth.
大气压就是压在地球表面上的所有空气的重量。
What is the drill pipe string weight in air?
钻杆在空气中的重量是多少？
Air has weight, though it is very light.
空气具有重量，可是它很轻。
Though air has weight, it is very light.
虽然空气有重量，但是它很轻。
Department of the Air Self-cooling, with a small size, light weight, heat insulation, high-grade characteristics.
系空气自冷式，具有体积小、重量轻、绝缘耐热、等级高的特点。
空气有重量是真的。
Air has weight, though it is very light.
虽然空气很轻，但它有重量。
Atmospheric pressure is the weight of ail the air against the surface of the earth.
大气压则是所有空气对地球表面形成的重量。
Water has weight, and air has weight.
水有重量，空气也有重量。
The dread in the classroom seemed to weight the air.
教室里气氛凝重，令人生畏。
The dread in the classroom seemed to weight the air.
教室里气氛凝重，令人生畏。
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