前模 meaning in English

front mold
front mould

Finite element analysis shows this method can confirm the position of the crackle and further experimental analysis indicates that it need not - the mode parameter before damaged and only by damaged structure mode parameter the crack of the crack of the frame can be discerned
有限元分析表明，此法能够初步确定裂纹的位置；进一步结合实验分析，结果表明，无须知道结构损伤前模态参数，只需获取损伤结构前几个阶振动模态及频率并代入有关公式即可初步确定裂纹的相对位置。
The design and machining technology process of its molding part including the front moulding plate 、 front mould kernel 、 back mould plate 、 back mould kernel 、 back mould set piece 、 incline guide pin 、 slide steatite etc , and the choice and calculation of technology parameters of the impotent part , the design process of extrusion outfit , inject system and other makeup are specified in detail ; test and product have been introduced
详细地叙述了模具成型零件包括前模板、前模仁、后模板、后模仁、后模镶件、斜导柱、滑块等的设计与加工工艺过程，重要零件的工艺参数的选择与计算，推出机构与浇注系统以及其它结构的设计过程，并对试模与产品缺陷作了介绍。