diameter quotient

例句：

1. 1.The engineer calculated the diameter quotient of the pipe to ensure it was within specifications.
   工程师计算了管道的直径比以确保它符合规格。
2. 2. The scientist used a microscope to measure the diameter quotient of the crystals.
   科学家使用显微镜测量晶体的直径比。
3. 3.In the construction industry, the diameter quotient is crucial for calculating the material needed for the project.
   在建筑行业中，直径比对于计算项目所需的材料至关重要。