该组包括较低层次的操作和支持性岗位，如操作员，工人和司机。

This group includes lower level operations and support jobs, such as operators, laborers and drivers.

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它使操作员能够确定门户在遵守服务级别协议(Service Level Agreement, SLA)的同时，对宝贵资源(如cpu或内存)的消耗程度。

It enables the operator to determine to what extent the portal consumes valuable resources (such as CPU or memory) while it adheres to the defined Service Level Agreements (SLAs).

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在这一过程中可能会有意外情况需要人工干预（如，OTMPS 操作员可能手工处理和纠正一些错误的订单）。

There might be exceptions to this normal processing, which require human intervention (for example, an OTMPS operator might manually handle and correct an invalid order).

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