ballasting

He has got no ballast whatever.

他这点也不沉着。

You may deballast the clean ballast water into the sea.

你可以向海里排清洁压载水。

We can trust that company; the partners are in ballast all right.

我们可以信任那家公司，其合伙都很可靠。

The road lamp explosion-proof lamp,lamp pole,base.Inside the base,junctionbox or special ballast of road lamp is installed.

1、马路灯防爆灯、灯杆、基座三部分组成，基座内装接线箱或路灯专用镇流器。