effective ground造句

• Unit of choose and employ persons attends inductrial injury society to be sure to be precaution and effective ground to control a profession to harm , provided reliable economic safeguard , avoid the pecuniary loss that causes because of occupational disease place
  用人单位参加工伤社会保险为预防和有效地控制职业伤害，提供了可靠的经济保障，避免因职业病所造成的经济损失。