Objective To investigate rule of change and significance of collagen I, III and the mechanism after blocking lymph of rabbit heart.

目的观察兔心脏淋巴循环阻断后i、II I型胶原蛋白变化的规律，并探讨其机制。

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It was shown that the laws of points won and lost of serve, blocking and counter attack under the old rule still play an important role in the new rule.

结果表明，发球得分制下发球、拦网、防反等得失分规律在每球得分制规则下仍发挥着作用。

youdao

It was shown that the laws of points won and lost of serve, blocking and counter attack under the old rule still play an important role in the new rule.

结果表明，发球得分制下发球、拦网、防反等得失分规律在每球得分制规则下仍发挥着作用。

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