weighting bottle是什么意思

用法例句

This paper analysed some key problems of design for non_symmetrical bottles part carrying spiral, and researched some effective method of designing to the longitudinal section dimensions of part carrying spiral s groove.

本文分析了非对称瓶分件供送螺杆设计的一些关键问题，研究了一套非对称瓶分件供送螺杆螺旋槽轴向剖面设计的有效方