半径

• For calculating the force of gravity on a satellite, the radius of the earth is irrelevant .
  计算地球作用于卫星的重力时，地球的半径是无关紧要的。
• The smaller the curvature and the larger the crack length the smaller will be the fracture stress .
  曲线半径越小，裂纹长度越大，断裂应力也就越低。
• A radian is the angle subtended by an arc of a circle whose length is just equal to the radius .
  一弧度就是长度刚好等于半径的一段圆弧所对的圆心角。
• The radii are proportional to the time which has elapsed since the wave front occupied the position wi .
  半径与波前占据wi位置以来能经过的时间成正比。
• The maximum shearing stress to which the material is subjected has a value equal to the radius of the circle .
  材料承受的最大剪断应力数值等于圆的半径。
• The acceleration may in turn be obtained from the velocity of the satellite and the radius of the orbit .
  这个加速度又可根据卫星的速度和它的轨道半径来求得。
• The integration corresponds to adding successive shells to the core until the core has radius r .
  这个积分相当于把一系列球壳加到球核上，直到球核的半径等于R时为止。
• When the secondary wave is just starting at e, that from c will have formed a hemisphere of radius cg .
  当E处的次波刚开始发出时，从C发出的次波已形成一个半径为CG的半球面。
• On the other hand, it seems unlikely that this process can produce objects much in excess of a few kilometers in radius .
  但是，这个过程看来不可能形成半径超过几公里的天体。
• Elevation differences is small compared with the earth's radius, this is proportional to the height above sea level .
  高程差与地球半径相比显得很小，它与海洋面以上的高度成正比。