The unstable flow is attributed to the long relaxation time of the samples resulted from their ultrahigh molecular weight, and a dependence of the critical shear rate on the molecular weight and temperature is presented. 不稳定流动与超高分子量聚合物长的松弛时间有关,并提出了临界剪切速率与分子量和温度的定量关系式。
The blue shift for Si-N and Si-H stretching mode with the increasing NH_3 flow rate can be attributed to that more N atoms with a higher electro-negativity are bonded into the a-SiN_x : H film. 随着NH3流量的增加,薄膜中键合了较多的具有较高电负性的N原子是Si-N和Si-H伸缩振动发生蓝移的主要原因。
Conclusions The high velocity of portal flow after OLT was mostly attributed to increased flow from the splenic vein; 结论术后门静脉的高流速归因于脾静脉回流的持续增高;
The construction of system dependence graph can be attributed to the control flow analysis and data flow analysis. The control dependence relationship among statements is obtained by control flow analysis, which can be attributed to obtain the father-child relationship. 系统依赖图的构造可以归结为控制流分析和数据流分析,控制流分析主要是求取语句间的控制依赖关系,可以归结为父亲-孩子关系的求解。
According to the influence of perforation inflow on the main flow, the pressure drop along the horizontal well is attributed to friction and acceleration losses. A general pressure-drop expression is established based on the principles of conservations of mass and momentum. 根据孔眼注入对水平井筒中流体流动的影响,将井筒压力损失分为摩擦损失和加速损失两部分,基于质量、动量守恒原理,建立井筒流动压力损失模型。