1、

The maximum effective hole diameter mathematical model describing flow of sligh+ tly compressible fluid through a three layer crossflow reservoir is solved rigorously with consideration of wellbore storage and different skin factors.

在考虑表皮效应和井筒储存的影响的条件下,采用最大有效井径的概念,建立无限大三层越流油藏井底压力的动态模型。

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2、

The efficacious capacity of water absorption of eroded soil are 15% and less than 10% for the sligh-tly and seriously eroded soils respectively.

轻度和严重侵蚀类型土壤的吸持有效水容量分别为15%和不足105。

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3、

Derrick as one special apparatus of petroleum drilling production, price is c(?) tly and safe performance requirement is strict.

井架作为石油钻井生产的一种特种设备,价格昂贵、安全性要求高。

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4、

Conclusions PNA can be delivered into tumor cells in form of PNA-DNA hybrids by cationic liposome. Properly designed antisense PNA can inhibit MDR related P-gp expression of SK-N-SH cells efficien-tly and specifically.

结论PNA-DNA杂交阳离子脂质体转染法可有效增加细胞对PNA的摄取,特异序列的反义PNA可在一定程度上阻断神经母细胞瘤MDR相关蛋白P-gp的表达。

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5、

To observe const an tly for 2 months.

均连续观察2个月。

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