The Method of Group-Control for Electronic Ballasting of the High Power Factor;

介绍了整流装置的功率因数的特点，分析了导通角的控制方法。

EPDM can be installed by either ballasting, mechanical fastening or full adherence.

三元乙丙可以安装由镇、机械紧固或完全遵守。

The ingots being weighed prior to melting for pouring into the lower keel, to ensure accurate ballasting.

正在权衡的铝锭融化之前的涌入较低龙骨，以确保准确压。

As usual I am not going to go over ballasting because I still feel that this is an article all by it self.

一如以往，我不想去压载物，因为我仍然觉得这是一篇文章，所有由它的自我。

On the issue concerning the administration of provision of ballasting water, garbage disposal and other port services for vessels.

关于为船舶提供压舱水、垃圾处理等港口服务的管理问题。