克尔文温标以绝对零度为其零点，它的基本单位是克尔文。
The kelvin temperature scale has absolute zero as its zero point, and its fundamental unit is the kelvin.
必须做好调整的准备工作，以指示零负荷时的真零点。
Provision must be made for adjusting to indicate true zero at zero load.
必须做好调整的准备工作，以指示零负荷时的真零点。
Provision must be made for adjusting to indicate true zero at zero load.
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