减轻了测量人员的工作强度，解除了人为控制水准尺垂直的思想负担。
The working strength of the survey person can be reduced, and the idea burden of the perpendicularity of the manual control leveling rod can be relieved.
《标准预防措施》界定了确保基本水准的感染控制所需采取的工作方法。
Standard Precautions define the work practices that are required to ensure a basic level of infection control.
为避免发生这种情况，每个Active Director y域控制器都为其他用于进行复制的域控制器维持一个称为高水准矢量(HWMV)的值。
To prevent this, each Active Directory domain controller maintains a value called the high watermark vector (HWMV) for other domain controllers that it is replicating with.
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