pkn的音标

Considering the fracture temperature field, we calculated physical dimension of the fracture using PKN model, estimated the distribution of full-suspended fracturing fluid in the fracture and the conductivity of sand-packed fracture.

在考虑裂缝温度场对裂缝几何尺寸影响的基础上，使用PKN模型计算了裂缝的几何尺寸，计算了全悬浮携砂液在缝中的运移分布及填砂裂缝的导流能力。

A new analytical model for pressure decline under the condition of forced fracture closure was developed on the basis of material balance theory and the former corresponding fracture models, such as PKN and KGD models.

以物质平衡原理和相关分析模型为基础，对PKN和KGD两种裂缝模型建立了裂缝强制闭合条件下的压力降落解释模型。

After PKN treatment, two varieties of plant height, ear height, ground dry weight, root to shoot ratio decreased.

聚糠萘合剂处理后，两品种株高和穗位高下降，地上与地下部干物重增加，根冠比增加。