arch camber造句

• The measures against coal arch camber in planomural coal bin and coal drop pipe are proposed by analyzing practical cases
  通过实例分析，提出了解决煤仓及落煤管落煤起拱的措施。
• The influencing factors of coal arch camber in planomural coal bin and coal drop pipe with rectangular or circular cross section during coal drop are studied theoretically
  摘要对落煤过程中平壁煤仓及截面形状分别为矩形、圆形的落煤管起拱的影响因素进行理论研究。