In this paper, the method of gradient was advanced and compared with the standard formation number general in the paper field.
提出了梯度分析法，并将其与国际上通用的标准匀度指数法进行了分析和比较。
Measurement of hepatic venous pressure gradient (HVPG) is a standard method for the assessment of portal pressure and correlates with the occurrence of its complications.
肝静脉压力梯度(HVPG)测定是评估门脉压力的标准方法，且HVPG也与其并发症的发生有关。
It also gives some Suggestions on the studies of gradient reduced coefficient of traction in long tunnels and the design standard.
最后，本文就长大隧道坡度折减系数的分析及标准本身的研究提出了建议。
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