使用重量（不是压力）来确定钢瓶内乙炔的数量。
Weight (not pressure) is used to determine the amount of acetylene in a cylinder.
你也可能会停止用使用重量器械并把重量调到零重。
You might stop using weight machines and switch exclusively to free weights.
各个俱乐部之间及印第安人与欧洲人之间的竞赛使用重量很轻的比赛用雪鞋得以问世。
Competition between the clubs, and between Indian and Europeans, led to the introduction of lightweight racing snowshoes.
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