在日本，许多大公司的职工都有终身就业保障。
In Japan many workers for large corporations have a guarantee of lifetime employment.
许多大公司和研究机构在基于SAN网络协议的存储管理系统方面进行了大量的研究工作，并推出了一些商业化的系统。
Many foreign large corporations and research organizations have done a lot of research work in storage managing system based SAN.
在管理层批准他们的方案之前，他们也必须对(广告)成本做出预估，许多大公司的管理层会直接参予广告方案的制定。
They also make an estimate of the costs before management approves the plan. In most large companies management is directly involved in planning the advertising.
在管理层批准他们的方案之前，他们也必须对(广告)成本做出预估，许多大公司的管理层会直接参予广告方案的制定。
They also make an estimate of the costs before management approves the plan. In most large companies management is directly involved in planning the advertising.
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