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closing ratio
dril. 井喷压力与防喷器关闭压力之比
oil 防喷器工作压力与关闭芯子操作液压比; 关井比; 井喷压力与关闭芯子闸板操作液压比
tech. 配量比
closing ratio
: 1 phrase in 1 subject
Technology1