natural mortality rate

常见例句

雙語例句

• Conclusion In order to reduce mortality rate of the residents in the area, it is necessary to strengthen the administration of natural and social environment of the area.
  結論 爲了降低該區居民死亡率，既要進一步加強其自然環境的治理，也應重眡社會環境的治理。
  d.wanfangdata.com.cn

權威例句

• Whale researchers use population models that factor a species' reproductive rate and its natural mortality to come up with an estimate of how many are likely dying.
  MSN: Feds to reroute SF Bay ships to protect whales
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