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。

Under no circumstances must cargo loading or ballasting be carried out so that the load line is exceeded.

在装载货物和加压载作业时，不允许超过装载线。

Fully-automated levelling of the outriggers and ballasting with advanced keyhole technology increases the quick readiness for operation of the crane.

全自动支撑水平调节与先进的钥匙孔技术实现快速配重安装，加快了起重机投入使用的速度。

In order to ensure safe pilotage and berthing and prevent pollution, all load-free oil tankers calling at ports must have ballasting water on less than one fourth of their loading capacities.

第十条为保证油轮的安全引航、靠泊和防止海域污染，所有进港的空载油轮留存的压舱水不得少于该油轮载重量的四分之一。