Part of it is that they provide necessary services.
部分是因为它们提供了必须的服务。
Make sure all the necessary services on the server are running.
确保服务器上所有必需的服务在运行。
Make sure all the necessary services on the server have started in the correct order.
确保服务器上所有必需的服务以正确的顺序启动。
While many industry norms are questionable at best, agents provide necessary and important services.
尽管行业的许多规范往最好说，也值得疑问，但代理机构的确提供了必要而重要的服务。
At times it is necessary to provide these services across a secure channel.
有时我们必须要通过一个安全通道来提供这些服务。
The necessary support services cannot be initialized.
无法初始化必要的支持服务程序。
Maintenance Services cover all activities necessary for trouble-free crane operation.
维修服务包括提供所有为保证起重机安全可靠的一切必要措施。
Any other information as necessary for the provision of Services to you.
就提供该服务给阁下而需要的其他资料。
Any other information as necessary for the provision of the Services to you.
就提供该服务给阁下而需要的其他资料。
Then, and only then, are his services necessary.
到那时候，也只有到那时候，他的服务才是必需的。
Then, and only then, are his services necessary.
到那时候，也只有到那时候，他的服务才是必需的。
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