<span style、"font-family: Calibri; font-size: small;">M</span><span style="font-family: 宋体; font-size: small;">′</span><span style="font-family: Calibri; font-size: small;">d</span><span style="font-family: 宋体; font-size: small;">＇</span><span style="font-family: Calibri; font-size: small;">=n</span><span style="font-family: 宋体; font-size: small;">＇</span><span style="font-family: Calibri; font-size: small;">+p</span><span style="font-family: 宋体; font-size: small;">＇</span><span style="font-family: Calibri; font-size: small;">+v</span><span style="font-family: 宋体; font-size: small;">＇</span>
<span style、"font-family: Calibri; font-size: small;">Md/P=f</span><span style="font-family: 宋体; font-size: small;">（</span><span style="font-family: Calibri; font-size: small;">Yp</span><span style="font-family: 宋体; font-size: small;">，</span><span style="font-family: Calibri; font-size: small;">W</span><span style="font-family: 宋体; font-size: small;">；</span><span style="font-family: Calibri; font-size: small;">rm</span><span style="font-family: 宋体; font-size: small;">，</span><span style="font-family: Calibri; font-size: small;">rb</span><span style="font-family: 宋体; font-size: small;">，</span><span style="font-family: Calibri; font-size: small;">re</span><span style="font-family: 宋体; font-size: small;">，</span><span style="font-family: Calibri; font-size: small;">1/p*dp/dt</span><span style="font-family: 宋体; font-size: small;">；</span><span style="font-family: Calibri; font-size: small;">U</span><span style="font-family: 宋体; font-size: small;">）</span>
<span style、"font-family: Calibri; font-size: small;">Md=L1</span><span style="font-family: 宋体; font-size: small;">（</span><span style="font-family: Calibri; font-size: small;">y</span><span style="font-family: 宋体; font-size: small;">）</span><span style="font-family: Calibri; font-size: small;">+L2</span><span style="font-family: 宋体; font-size: small;">（</span><span style="font-family: Calibri; font-size: small;">i</span><span style="font-family: 宋体; font-size: small;">）</span>
<span style、"font-family: Calibri; font-size: small;">PT/V=Md</span>