protection level

• 保护水平

protection level的用法和样例：

例句

1. Adsorbate bacterins can vary in potency , which affects the level and duration of protection.
   吸附菌苗在影响保护水平和时间的能力上可能不同。
2. It has further completed the procedures and ways for legal and administrative enforcement, thereby considerably enhancing the level of protection.
   进一步完善了司法和行政执法的程序和途径，大幅度地提高了保护水平。