本文主要从雷达战略备件长期保存要求出发，谈了包装方案设计中应注意的几个因素。
This paper stands on serving the demand of long term kept for radar strategy spare parts, talk about that some elements should be noticed in designing packaging scheme.
介绍船用Z型推进装置主要零备件的损坏原因以及在进行零备件国产化过程中的方案制定、设计原则和修理方法。
Causes for damage of main parts of Z — type Marine propulsion unit are introduced in this pa - per. it also gives the making of plan. design principle and repair methods.
随时可以按照用户要求进行设计、生产不同规格的链条、手模座、及相关备件。
Users can at any time in accordance with the requirements of the design, production of different specifications of the chain, Shoumo Block, and related spare parts.
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