line-shaft造句

• Summary : submersible motor pumps have been used as sewage and construction site pumps for some time now and have virtually ousted conventional wet - well line - shaft pumps in these applications
  摘要：潜水电泵用于作排污河建筑现场用泵，正在取代传统的湿式长轴泵。
• The use of proven corrosion and abrasion - resistant materials means that submersible motor pumps are increasingly becoming an interesting and economical alternative to line - shaft pumps for these industries
  防腐和抗磨材料的使用使潜水电泵成为有关行业替代长轴泵的经济选择。