A. two objects not in contact B. two surfaces in contact C. one surface and one object D. one object and the air 相关知识点: 试题来源: 解析 B。解析:文章中提到“It is the force that opposes the motion between two surfaces in contact.”,即摩擦力是两个接触表面之间的反作用力。反馈...
ait is easily verified that the subproduct of element preconditioning matrices for each group can be written as a sum: 它容易地被核实元素预先处理的矩阵subproduct为每个小组可以被写作为总和: [translate] aUNSPECIFIED CORNERS AND EDGES ARE TO BE 0.2mm MAX. 非特指的角落和边缘是0.2mm最大。 [...
11. It is the force of friction that always slows down the moving object. (词性: ___意思: ___) 12. Some animals such as snakes hibernate in the winter because the winter season only provides a cold, frozen ground where food is extremely rare. (词性: ___意思: ___) 13. It is o...
求翻译:Friction is the resistive force between surfaces that是什么意思?待解决 悬赏分:1 - 离问题结束还有 Friction is the resistive force between surfaces that问题补充:匿名 2013-05-23 12:26:38 摩擦是电阻力之间表面热门同步练习册答案初中同步测控优化设计答案 长江作业本同步练习册答案 名校课堂助教...
aget to sleep 得到睡觉[translate] awhere "Fa" is the friction force, "P" is the hydraulic pressure inside the actuator and "ai" are the interpolating coefficients. 那里“Fa”是摩擦力, “P”是液压在作动器里面,并且“ai”是内插的系数。[translate]...
friction 显示所有例句 n. 1. [u] 摩擦the action of one object or surface moving against another 2. [u] 摩擦力the resistance (= the force that stops sth moving) of one surface to another surface or substance moving over or through it ...
The plan is likely only to aggravate ethnicfrictions. 这一方案很有可能只会加剧种族冲突。 柯林斯高阶英语词典 The pistons are graphite-coated to reducefriction. 活塞上涂了一层石墨以减小摩擦力。 柯林斯高阶英语词典 Childbirth often were evidentfrictionhemorrhage, as its vulnerability, will suture bleedin...
解析 D。火车在行驶时要克服空气阻力。选项 A“friction”摩擦力主要是火车与轨道之间的,不是火车行驶时主要克服的力。选项 B“gravity”重力是始终存在的,但不是火车行驶时主要克服的力。选项 C“magnetism”磁力在一般的火车行驶中不是主要克服的力。
The force that makes a pen fall off a table is ___. A. gravity B. friction C. force D. magnetism 相关知识点: 试题来源: 解析 A。笔从桌子上掉下来是因为重力作用。B 选项 friction 摩擦力不是笔掉下来的原因。C 选项 force 力太宽泛。D 选项 magnetism 磁力,这里没有磁力。反馈 收藏 ...