等于

• Four plus two equals [is] six .
  四加二等于六。
• The strain energy density function equals the helmholtz .
  应变能密度函数等于亥姆霍兹函数。
• Each of the two delay times is half the intercept time .
  两种延迟时间都等于截距时间的一半。
• Eight minus four equals four .
  八减四等于四。
• The total internal torque in any system is equal to zero .
  任何一个系统，其总内转矩等于零。
• You might as well throw your money into the sea as lend it to him .
  你借钱给他等于丢在海里。
• To sink under the weight was but to increase the weight .
  在困难之中消沉下去就等于增加困难。
• The right-hand side is zero .
  右端项等于零。
• If you play with the cia, you are playing with fire .
  假如你要同中央情报局周旋，就等于玩火。