be effective

• Two methods are proved to be effective
  详细讨论了低温显微图像的分割方法。
• Experiment results show that the approach is effective
  实验表明了该方法的有效性。
• Occupation , to be effective , must be maintained
  为有效起见，占领必须持续。
• With the 2nd generation id is effective of course
  用第二代身份证当然有效。
• The contract will be effective from 1th , october , 2007
  该合同将于2007年10月1日生效。
• The treatment is effective for psoriasis [ ps ( ) ' raisis ]
  这种疗法对于治疗牛皮癣有效。
• Royal jelly is effective in treating nervous exhaustion
  蜂皇浆对治疗神经衰弱很有效。
• The example proves the optimum method to be effective
  实例证明这种优化方法行之有效。
• This weapon is effective against infantry and cavalry
  这种武器对步兵和骑兵同样有效。
• Fanatic spam is effective for a small period in the game
  暴狂热者对小规模战斗很有用。