此后四次航行的主要任务是将科学实验仪和备件送往空间站。
The four flights after this one will be largely devoted to carrying science experiments and spare parts to the space station.
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.
主要供备件金属零件淬火、氰化、退火和回火等热处理用，尤其适用于紧固件、标准件热处理。
Mainly for spare parts heat treatments and so on metal parts quenching, cyaniding, annealing and tempering USES, especially is suitable for the fastener, the standard letter heat treatment.
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