半正矢

The cyclical pulse load consisting of a haversine load time and a rest period is adopted to simulate the actual vehicle load, and the permanent strain model under the repeated load is derived from the rheological and viscoelastic theories.

采用半正矢波间歇荷载模拟实际轮载作用，综合运用流变学和粘弹性力学理论推导了周期性荷载作用下沥青混合料永久变形的力学模型。

A loading cycle consisting of a haversine load followed by a rest period was adopted to simulate the actual vehicle loading on asphalt pavement, and a viscoelastic-damage mechanics model was deduced for permanent deformation of asphalt mixture under repeated load.

再采用半正矢波间歇荷载模拟实际路面轮载作用，推导了重复荷载作用下沥青混合料永久变形的弹黏塑性损伤力学模型。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。