Shipping maintenance every four months worked well when feature releases were shipping every three years and there was only one current stream to support.

如果功能版本每三年发布一次，只需要支持一个版本，那么每四个月发行一次维护版没有任何问题。

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Shipping Maintenance is the indispensable part in the shipping technology management to guarantee the safety of ships and the high efficiency of shipping.

船舶维修保养是船舶技术管理中不可缺少的重要组成部分，是船舶安全运营和高营运率的保障。

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The towers will stick out of the water and be lit, to warn shipping, and also be designed to be lifted out of the water for maintenance and to clean seaweed from the blades.

这些塔会升出水面并且亮灯，用以警示船只避让，同时也能够完全升到水面以上，以方便维修螺旋桨和清理叶片上的水草。

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It is likely that the transportation and shipping of the drugs as well as the maintenance of clandestine drug laboratories is becoming more difficult as the security situation tightens.

CENTERFORSECURITYPOLICY: Columbia: Moving toward more stability