张力

• The two forces acting on the bucket are the weight and the tension of the cable .
  加在这吊桶的力为重量和纲缆的张力。
• The origin of the normal force is similar to the origin of tension in a string .
  法向力的起源与绳子上的张力的起源相似。
• The tendency of a ring compound to polymerize depends upon the extent of ring strain .
  环状化合物的聚合倾向，取决于环的张力大小。
• The parasympathetic nerves enhance both tone and motility, and relax sphincters .
  副交感神经既增加张力，也加强运动，并松弛括约肌。
• Faults can be ranged into two principal types which are caused by either tension or compression .
  断层可分为两种主要类型，即张力断层和挤压断层。
• Each mass is subject to two forces, namely the tension of the string and the gravitational force .
  每一个物体受到两个力，即细绳的张力和重力作用。
• The restoring force in a vibrating flexible membrane arises from the tension with which it is stretched .
  柔性膜振动时的回复力起因于使膜绷紧的张力。
• Captain hiller quickly backed the ship, and the cable was paid out to reduce towline tension .
  希勒船长急忙使船退行，放松缆绳以减少作用在它上面的张力。
• Regular vinyl addition polymers may be obtained from particularly strained endocyclic double bonds .
  由带特殊张力的桥环双键可以得到规整的乙烯类加成聚合物。
• A fluid in equilibrium cannot sustain shear forces, and it can sustain only very small forces of tension .
  平衡于状态中的流体，经受不住切力，只能经受非常小的张力。