分析了召开制药工程专业生产实习动员会议的必要性；

The necessity of mobilizing the students into the production practice is analyzed;

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比赛规则不允许被随意更改，除非得到中国台球协会许可，对规则临时变动的书面解释应在赛前运动员会议中公布。

Thee actual Rules of Play may not be altered, unless a permit is issued by CBSA for the individual event. A written explanation of any rules change should be made available at the players' meeting.

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