问题
名词解释
曲线阻力 curve resistance
答案
参考答案:
车辆溜经曲线时(包括道岔导曲线),由于离心力的作用,曲线内外轨长度不等,以及车辆心盘、旁承的转动摩擦等原因而产生的阻力叫曲线阻力。
曲线阻力 curve resistance
参考答案:
车辆溜经曲线时(包括道岔导曲线),由于离心力的作用,曲线内外轨长度不等,以及车辆心盘、旁承的转动摩擦等原因而产生的阻力叫曲线阻力。
选择句子完成对话。 | |
Father: "Hi! Jenny, everything's ready. 1._______, OK?" Jenny: "OK, father." Father: 2._______? Jenny: I'd like some beef and rice, please. Father: 3._______, your rice and beef. Jenny: Thanks, father. Now 4. . Father: OK, here you are, your chicken and bread. Jenny: Now, I'd like some eggs, vegetables and juice (果汁). Father: Oh! My god! Anything else? Jenny: No, father. Now I'm full (吃饱了).
|