{" or ":" 或 ","Acceleration a (m/s²)":"加速度a（m/s²）","Acrylic (PMMA)":"亚克力（PMMA）","Air":"空气","Angle of incidence (degrees from the normal)":"入射角（与法线的夹角）","At infinity":"在无穷远处","at {0} s":"在{0} s时","bent away from the normal":"偏离法线","bent towards the normal":"偏向法线","Converging lens or concave mirror":"会聚透镜或凹面镜","Critical angle":"临界角","Crown glass":"冕玻璃","Custom":"自定义","Diamond":"钻石","Displacement s (m)":"位移s（m）","Diverging lens or convex mirror":"发散透镜或凸面镜","Enter a focal length and an object distance above zero.":"请输入大于零的焦距和物距。","Enter a speed above zero, an angle from −90° to 90°, a height of zero or more, and gravity above zero.":"请输入大于零的速度、介于−90°和90°之间的角度、不小于零的高度，以及大于零的重力加速度。","Ethanol":"乙醇","Fill in exactly three of the five values and leave the other two empty; you have filled in {0}.":"请在五个数值中准确填写三个，并将另外两个留空；您已填写{0}个。","Final velocity v (m/s)":"末速度v（m/s）","First medium":"第一介质","Flint glass":"火石玻璃","Focal length (cm, positive)":"焦距（cm，正数）","Gravity (m/s²): 9.81 on Earth, 1.62 on the Moon":"重力加速度（m/s²）：地球上为9.81，月球上为1.62","Ice":"冰","Image":"图像","Image distance":"像距","Image height":"像高","Impact speed":"撞击速度","Initial velocity u (m/s)":"初速度u（m/s）","inverted":"倒立","Kinematics calculator (SUVAT)":"运动学计算器（SUVAT）","Launch angle (degrees above horizontal)":"发射角（高于水平线的角度）","Launch height (m)":"发射高度（m）","Launch speed (m/s)":"发射速度（m/s）","Lens equation calculator":"透镜公式计算器","Lens or mirror type":"透镜或镜面类型","Light changes direction where it crosses into a material with a different refractive index: n₁ sin θ₁ = n₂ sin θ₂, with angles measured from the normal, the line at right angles to the surface. Going into a denser medium it bends towards the normal. Going into a less dense one it bends away, and beyond the critical angle it cannot leave at all, which is how optical fibres and the sparkle of diamonds work. The indices are for yellow light; they vary slightly with colour.":"光线进入折射率不同的材料时会改变方向：n₁ sin θ₁ = n₂ sin θ₂，其中角度以法线为基准测量，法线是与表面垂直的直线。进入较密介质时，光线会偏向法线；进入较疏介质时，会偏离法线；超过临界角后，光线完全无法逸出，这正是光纤传输和钻石闪耀的原理。折射率适用于黄光，不同颜色的光折射率会略有差异。","light passes into a denser medium at any angle":"光线以任意角度进入较密介质","Magnification":"放大率","Maximum height":"最大高度","None":"无","Object distance (cm)":"物距（cm）","Object height (cm, optional)":"物高（cm，可选）","Projectile motion calculator":"抛体运动计算器","Range":"射程","Ray diagram":"光线图","real image, on the far side":"实像，在远离物体的一侧","Refraction angle":"折射角","Refraction at the boundary":"边界处的折射","Refractive index n₁ (first medium)":"折射率n₁（第一介质）","Refractive index n₂ (second medium)":"折射率n₂（第二介质）","Refractive indices are 1 or more, and the angle is from 0° to just under 90°.":"折射率不小于1，角度范围为0°至略低于90°。","Sapphire":"蓝宝石","Second medium":"第二介质","Snell's law calculator":"斯涅尔定律计算器","the angle is above the critical angle, so all light reflects":"角度超过临界角，因此所有光线都会反射","The five SUVAT equations hold when acceleration is constant: v = u + at, s = ut + ½at², s = vt − ½at², v² = u² + 2as, and s = (u + v)t ÷ 2. Each leaves out one of the five quantities, so any three known values give the other two. Choose a positive direction and keep to it: an object thrown upwards with gravity acting down has a negative acceleration.":"加速度恒定时，五个SUVAT方程成立：v = u + at、s = ut + ½at²、s = vt − ½at²、v² = u² + 2as，以及s = (u + v)t ÷ 2。每个方程都会省略五个量中的一个，因此知道任意三个数值即可求出另外两个。请选择一个正方向并始终保持一致：物体向上抛出、重力向下作用时，加速度为负。","the object is at the focal point, so the rays leave parallel":"物体位于焦点处，因此光线会平行射出","The path of the projectile":"抛体的运动轨迹","The thin lens equation 1/f = 1/do + 1/di links the focal length with the object and image distances, and the magnification is −di ÷ do. With the convention used here, a real image has a positive distance and forms on the far side of a lens, and a negative distance means a virtual image you see through the lens. The same equation holds for curved mirrors, with a concave mirror converging. Diverging lenses always give a smaller, upright, virtual image.":"薄透镜公式1/f = 1/do + 1/di将焦距与物距、像距联系起来，放大率为−di ÷ do。按照此处采用的约定，实像的距离为正，并在透镜的另一侧形成；距离为负表示虚像，即透过透镜看到的像。同一公式也适用于曲面镜，其中凹面镜具有会聚作用。发散透镜总是形成较小、正立的虚像。","These values have no solution with time running forward: check the signs, for example a negative acceleration for an object slowing down.":"在时间向前推进的情况下，这些数值无解：请检查正负号，例如减速物体的加速度应为负。","Time of flight":"飞行时间","Time t (s)":"时间t（s）","Total internal reflection":"全反射","two answers: the object passes the same point twice, going up and coming down":"有两个答案：物体在上升和下降时各经过同一点一次","upright":"正立","Used: {0}":"已使用：{0}","Vacuum":"真空","virtual image, on the same side as the object":"虚像，与物体位于同一侧","Water":"水","Without air resistance the horizontal speed stays constant and gravity slows the climb, so the path is a parabola. From level ground, 45° gives the longest range; from a height, a slightly lower angle goes further. Real balls fly shorter, because drag grows with speed. The impact speed follows from energy: v² = u² + 2gh.":"不考虑空气阻力时，水平速度保持不变，重力会使上升速度减慢，因此运动轨迹是抛物线。从水平地面发射时，45°能达到最远射程；从一定高度发射时，略低的角度能飞得更远。真实的球飞行距离较短，因为阻力会随速度增加。撞击速度可由能量关系得出：v² = u² + 2gh。","{0} is not a number.":"{0}不是数字。","{0}° below horizontal":"低于水平线{0}°"}