Completed the PC interface circuits, ladder diagram procedures and other PC transformation of the preliminary design for the realization of its PC Control milling machine made early preparations.

完成了PC接口线路、梯形图程序及其他PC改造的初步设计，它为实现铣床的PC控制做好了前期的准备。

youdao

Article 7flights shall be organised and conducted in line with the phases such as preliminary flight preparations, pre-flight preparations, execution of flight and flight debriefing.

第七条组织与实施飞行，应当按照飞行预先准备、飞行直接准备、飞行实施和飞行讲评等阶段进行。

youdao

Article 7flights shall be organised and conducted in line with the phases such as preliminary flight preparations, pre-flight preparations, execution of flight and flight debriefing.

第七条组织与实施飞行，应当按照飞行预先准备、飞行直接准备、飞行实施和飞行讲评等阶段进行。

youdao