Conclusion It is necessary to strengthen the control and individualprotection to reduce the occurrence and development of hearing loss.
结论企业应加强建立听力保护计划，防止职业性噪声聋的发生。
2
It is wise for our civil law to hold the premise of "born alive rule", and adopt legislation strategy which the summary protection and the individualprotection unifies.
Study and application of the polymer materials of preventing tritium permeation were introduced and analysed in tritium technics and individualprotection and ICF polymer target pill.