长期标准的英文

long run standard

long-run standards

• 长期:    over a long period ...
• 标准:    standard; criterio ...
• 长期标志:    long-term marking

例句与用法

1. Air quality is worse than both the short and long term standards
   空气质素超出短期和长期标准。
2. Air quality is significantly worse than both the short term and long term standards
   空气质素大幅超出短期和长期标准。
3. Air quality is within the short term standard but is worse than the long term standard
   空气质素符合短期标准，但超出长期标准。