small gap短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 小间隙 The die of flexible deforming parts is introduced, the technology improvement is completed to convex and concave die of main die parts in order to guarantee the reasonable small gap. 介绍了易变形零件的模具，为了保证合理的间隙，对主要模具零件的凸凹模进行工艺改进。 chemyq