valving的意思?


装设阀门

相关问题
  • valving造句

    A new nonlinear variable structure excitation controller and steam valving controller are proposed in this paper.论文提出一种新的非线性变结构发电机励磁和快关汽门控制器....
  • valving怎么读?

    valving的音标:valving的英式发音音标为:['vælvɪŋ]valving的美式发音音标为:['vælvɪŋ]...