冠益嗪明显减慢大鼠心率，拮抗异丙肾上腺素的正性变时作用。
The drug markedly slowed the heart rate and antagonized the positive chronotropic effect of isoprenaline.
结论：GST对家兔窦房结具有负性变时作用，并可延长复极化时程。
CONCLUSION: GST exerted a negative chronotropic action and induced a delayed repolarization of pacemaker cells in SA nodes of rabbits.
当臂杆运行到上下两个极限位置时，分别压下限位开关，切断主控电路，变幅电机停车，达到限位的作用。
When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.
当振管垂直立于磁场环境中时，在交变磁场的作用下产生磁致伸缩，即沿振管的轴向作简谐振动。
Vibration tube in the magnetic field vertically brings about magnetostriction under the effect of alternate magnetic field, that is axis resonance.
分析桥梁受力性能时考虑了结构自重、车辆荷载和季节性温变荷载的作用。
Analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character.
本文根据骨缺损时硬脑膜在脑压作用下的弯曲变形特点，引入抗膨出特性参数：初始变形指数和蠕变指数。
The parameters of anti-protruding properties of dura and substitutes are introduced on the basis of constant creep solution of the dural deflection under the constant intracranial pressure .
大气腐蚀是造成钢结构损伤的一个主要因素，并且是随时间渐变的，其可靠性分析属于时变可靠性的范畴，而腐蚀模型在其中起重要的作用。
It varies with time and the reliability analysis considering corrosion is time variant reliability, while the model of the corrosion affects the reliability analysis significantly.
因此，综合考虑强度和疲劳问题，研究悬索跨越管道结构在风荷载作用下的时变可靠性对结构的正常使用具有重要意义。
Therefore, we should do research on the time-dependent reliability of cable-suspended pipelines (CSP) under the wind load with comprehensive consideration of strength and fatigue.
并依据此方程求得了一个时变力学问题——自重作用下矩形平面向上增长粘弹性时变力学解。
By using the equations, a time-varying problem of up-growing rectangular plane considering the gravity is solved. Moreover the elastic and viscoelastic analytical results are obtained.
而当结构中的杆件受到较多的横向载荷作用时，或者结构中的杆件为变截面时，这种方法解题过程变得非常冗长。
But when the bar of the structure is subjected to a lot of lateral loads, or when it is with variable cross-section, the resolving process could become quite tedious.
当激光器上升沿变陡时，在有效作用时间内温度上升得更快，对加工区域周围热效应的影响明显减弱，而热扩散距离变小。
When the rise time is steeper, the temperature rises faster, and the surrounding of the machining filed are less affected while the distance of the thermal diffusion reduces.
当激光器上升沿变陡时，在有效作用时间内温度上升得更快，对加工区域周围热效应的影响明显减弱，而热扩散距离变小。
When the rise time is steeper, the temperature rises faster, and the surrounding of the machining filed are less affected while the distance of the thermal diffusion reduces.
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