PCNA-index(PI) in the high ligation groups were much lower than the control groups(P<0.01), while apoptosis index(AI) were higher than the control groups (P<0.01).

结扎组生精细胞PCNA增殖指数（PI）明显低于对照组（P<0.01），凋亡细胞指数（AI）明显高于对照组（P<0.01）。

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There are large contouring errors around sharp corners when low-bandwidth servo controllers (such as P-PI control) are used.

有很大的错误，周围轮廓鲜明的弯道时，低带宽伺服控制器的使用。

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But resistive index (RI) and pulsatile index (PI) were markedly higher in cirrhotic patients with ascites than that in cirrhotic patients without ascites and that in the control group (P<0.01).

但肝硬化腹水组肾动脉阻力指数（RI）和搏动指数（PI）均显著高于其余两组（P<0.01）。

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