To minimize the withdrawal of liquid solvent, acetylene should be withdrawn from the cylinder at a rate not to exceed 1 /10 (one-tenth) of the capacity of the cylinder per hour during intermittent use.

• 为了将液体溶剂的提取量减少到最小，在间断性使用中，乙炔的提取速度每小时不应超过钢瓶容积的1 /10(十分之一)。