结果表明，供试土壤非交换性钾释放特性和有效性与粘土矿物密切相关。
The results showed that the releasing characteristics and availability ofnonexchangeable K related remarkably to clay minerals.
目的观察钾在临床上预防PT CA术后再狭窄的安全性和有效性。
Objectives To investigate safety and effectivity of potassium in prevention of restenosis after PTCA.
目的观察钾在临床上预防PT CA术后再狭窄的安全性和有效性。
Objectives To investigate safety and effectivity of potassium in prevention of restenosis after PTCA.
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