General motion low of back-pressure ports position is developed by solving thermodynamic model of compressor and carrying out dynamical computation.
通过求解压缩机热力学模型和进行动力计算，分析了背压孔的一般运动规律。
Methods the model was established by bilateral general cervical artery ligation mice intestinal motion rate, peptic acid secretion and the activity of pepsin were detected.
方法通过结扎双侧颈总动脉造成脑缺血模型，测定小鼠小肠的推进率及大鼠的胃酸分泌、胃蛋白酶的活性。
It is derived that general throwing motion formula and model parameters in which we take headlamp glass splinter as an example.
以汽车大灯玻璃碎片为例，给出了广义抛物运动抛距方程的参数。
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