First, there is documentary evidence, which is collected by means of a sampling effort for work products, artifacts, organizational policies and processes, and roles and responsibilities definitions.

首先，有书面证明，它是通过对工作产品、工件、组织政策和过程，及角色和职责定义的采样来收集的。

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For the control system to work, sensor sampling and control must be performed at periodic intervals.

为了保持控制系统的正常工作，传感器的采样与控制必须按照一定的周期间隔。

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Filters and sampling work at the root (or edge) transaction level.

Filters和sampling在根事务层次工作。

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The HSE said it was involved in two separate strands of work - the investigation into the management of asbestos at the school and the other into research sampling.

BBC: Asbestos: More concerns over Cwmcarn High School future