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- Keywords HGC;rolling down system;bending system;balancing hydraulic system; 压下系统;弯辊系统;平衡缸系统;
- She stood in a corner with tears rolling down(her face). 她站在角落里泪珠不断地顺着面颊滚落。
- She could not help the tears of rage rolling down her face. 愤怒的泪水不由自主地顺着她的面颊淌下。
- As his voice rose the tears began to roll down her cheeks. 随着他的嗓音提高，她的眼泪开始簌簌地直往下流。
- When rolling down the hill, he snatched at a rock. 在向山下滚的过程中，他一把抓住了一块岩石。
- Large logs came rolling down the slope. 粗大的圆木咕噜咕噜地从山坡上滚下来。
- Just then she saw a tear roll down Grandma's cheek. 忽然此时她看见一滴泪水滑过奶奶的脸颊。
- The ball was rolling down the hill. 球滚下山去。
- The boy's ball was rolling down the hill. 这个男孩子的球正向山下滚去。
- We couldn't stop the ball rolling down. 球滚到洞里去了,我们怎么追也追不上。
- The football is rolling down to the gate. 足球滚到了公园大门旁。
- The stone rolled down the hill by gravity. 石头在重力作用下向山下滚去。
- Tears were rolling down her cheeks. 泪珠从她的脸颊流下。
- Rocks and stones were rolling down the hillside. 岩石和碎石沿着山坡滚下。
- A stone came rolling down the slope. 一块石头从山坡上滚了下来。
- Children make the roll down a grassy hillside. 人们从山坡上滚彩蛋。
- I'll roll down the window for you. 我帮您把车窗摇下来。
- Can I roll down the window for smoking? 我能摇下车窗来抽烟吗?
- As the rock rolled down the mountainside, it gathered momentum. 石头滚下山时，它的动量增加。
- This paper introduces the trundle gray GM(1,1) model, which is improved from GM(1,1) model and has the best initial point and cuts down system errors. 使用改进的GM(1,1)模型,即滚动灰色GM(1,1)模型,其中模型初始点是动态且最佳的,并减少了系统误差。
