symmetrical type中文什么意思

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These cyclic sequences may be divided into three types : " deepening " - upward asymmetrical type , " shallowing " - upward asymmetrical type and symmetrical type
运用旋回等时对比法则对短期基准面旋回层序进行等时对比，并建立等时地层格架。
In this paper , the unified structure method on some symmetrical type multinomial partition base is given ; the unified partition program of multinomial is established by using the method of undetermined coefficients
摘要给出了不同对称类型多项式分拆基的统一构造方法，以逐步待定系数法为基础，编制了多项式统一分拆程序。
Haian yuandong nicey machine mold factory is that the specialty is engaged in : the boat is used a roll trigger to the four rollers types roll triggers to the standard adjustement type roll trigger to the three rollers symmetrical type , roll triggers to the next roller standard adjustmettype , rolltrigger to a upward roller standard adjustment type roll rigger , various specialties andnon - mark rolls up the trigger , z50 ' s series vertical drilling machine
海安远东精密机模厂是专业从事：上辊水平调整式卷板机，下辊水平调整式卷板机，三辊对称式卷板机，水平调整式卷板机，四辊式卷板机，船用卷板机，各种专业、非标卷板机， z50系列立式钻床。

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