"Life cycle" means the process starting with the user requirements, continues through design, realisation, qualification, process validation and maintenance until the stadium of not in use.
“生命周期”是指从用户需求开始的一系列过程，包括设计，完成，鉴别，鉴定和维护，直到不再使用为止。
"Life cycle" means the process starting with the user requirements, continues through design, realisation, qualification, process validation and maintenance until the stadium of not in use.
“生命周期”是指从用户需求开始的一系列过程，包括设计，完成，鉴别，鉴定和维护，直到不再使用为止。
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