除旧换新to renew

• 设备更新

  equipment upgrade

• 岁序更新

  the passing of a year

• 固定资本的更新

  renewal of fixed capital

• 更新委员会工作人员的阵容

  change the line-up of the committee staff

【林】to rejuvenate

• 树林更新

  reforestation

• 根株更新

  root regeneration

【信】to refresh