禅宗公案用动作模仿前辈禅师的言行范例，极类戏剧的角色扮演；
Imitating the masters in patriarchal examples of Zen is also parallel to role play.
米歇尔·奥巴马属于这两极之间的一类。
考察了不同碳链长度的胺类捕收剂对异极矿石英白云石和褐铁矿浮选行为的影响讨论了胺的碳链长度对捕收异极矿的影响。
A series of experimental studies were made on the effect of amide collectors with different length of carbon chain on flotation behaviors of hemimorphite quartz dolomite and limonite.
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