The crux of packing lies in protecting the goods from moisture.

　　包装的关键是防潮。

　　The machines must be well protected against dampness， moisture， rust and shock.

　　机器包装必须防湿、防潮、防锈、防震。

　　We have no objection to the stipulations about the packing and shipping mark.

　　我们同意关于包装和运输唛头的条款。

　　We can not afford time to change the packing because the ship will sail after two days.

　　由于轮船两天后就起航，我们来不及更换包装。