time-varying interpolation poly-phase filter 时变系数多相插值滤波器
In order to prevent us from drawing one poly more than one time we should have a flag on each polygon which will be set if the poly is drawn for the first time.
为了防止重画一个多边形，我们应当在每一个多边形上做一个标记，当多边形第一次被画的时候，设置这个标记当然画之前也要检查这个标记啦，不过肯定影响效率。
Poly(succinimide)(PSI) was synthesized by polycondensation of L-aspartic acid in a solvent. The effects of the catalyst, reaction time and solvent on the reaction were studied.
以L 天冬氨酸为原料，采用溶剂法合成聚琥珀酰亚胺，并研究了催化剂、反应时间和混和溶剂配比对反应的影响。
Chinese negotiators view time as an endless cycle so they make a poly-chronic use of time.
中国人认为时间是没有终点的并成循环运动的状态，因此他们倾向于在同一时间段内做多项工作。
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