n. viability
misc. term of service
海洋机构开始和包括孩子在内的人们签订十亿年服务期限的合同。
Sea Org initiates-some of whom are children-sign contracts for up to a billion years of service.
向前迁移的原因也许是为了利用新特性，或者由于旧版本的服务期限即将到期。
You may wish to forward migrate in order to take advantage of new features or because the old version is nearing its end-of-service date.
3年的服务期限是交错进行的，这样15个席位中的5个每年都要为获得批准/投票权而努力。
The 3-year terms are staggered so that 5 of the 15 seats are normally up for ratification/election each year.
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