在作偏移处理时，一般要求偏移基准面是水平的，且偏移的零点应在激发和接收的地表。
In migration processing, we usually require that migration datum is horizontal and that zero point for migration should be on the ground surface on which shot point and receiving points lie.
本文综述了有关一般玻璃系统零点剩余熵研究的新进展，同时介绍了自旋玻璃系统的熵冻结问题。
This paper reviews the new progress in the residual entropy of glass systems and the entropy -freezing in spin-glass systems and proposes a new explanations of the existence of residual entropy.
在测量领域中，传感器与测量电路一般都不可避免地存在残余电压与零点漂移，即零点误差。
In the field of measurement, the sensors and circuits may inevitably cause residual voltage and zero drift called zero error.
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