例句 /

Abstract: Mechanical seal is the key part of submersible sewage pump, the reliability of it decide the submersible sewage pump life.

Abstract: Mechanical seal is the key part of submersible sewage pump, the reliability of it decide the submersible sewage pump life.

文摘:作为潜水污水泵关键部件的机械密封,其可靠性决定潜水污水泵的使用寿命。