附件为石油行业常用单位的实用换算小软件，对于石油行业的学者使用单位换算非常实用。-Accessories for the oil industry and practical common unit conversion small software for the oil industry scholar With Converter is very practical.

10余种压力单位i，之间相互换算，非常方便。(More than 10 kinds of pressure unit I, mutual conversion, very convenient.)