pich是什么啊

pich是

1/释义：

abbr. 寻呼指示信道（Page Indication Channel）

2/例句：

By adopting small pich and bigger pich value， the quality of CT images could be improved and the dose of radiation that patients take in would be reduced.

采用小的螺距，和较大的螺距值来扫描可以提高CT图像质量并减少病人所接受的辐射剂量。