single-valve的用法和样例：
词汇搭配
- single steam chest valve 单汽柜阀
- single ported slide valve 单口滑阀
- single valve knapsack pump 背负式单阀泵...
- single seated main stop valve 单座式主汽门...
single-valve的相关资料：
临近单词
single file
single
single-chain bi functional antibody
single-- cell gel electrophoresis
single-purpose local-area network
single station meteorological element
single crystal nickel base superalloy
single stranded deoxyribonucleic acid
single-chain type vertical elevator
Single-layer interconnection medium
single-objective linear programming
single-phase electric-arc furnace
