death-rate

基本解釋

An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate.
當(dāng)一種動(dòng)物不能在每一代都繁殖出足夠的后代而與其死亡率保持一致時(shí)，它就會(huì)逐漸滅絕了。
Cancer figures largely in the death-rate of the US.
在美國(guó)，癌癥在死亡率中占相當(dāng)大的比重。
In recent years China has claimed a falling death-rate even as coal production has risen (see chart).
近年來(lái)，中國(guó)一直宣稱(chēng)在煤炭產(chǎn)量提升的同時(shí)，礦工死亡率則逐年下降。
blog.sina.com.cn

One of the U.N.Millennium Development Goals is to reduce the under-five death rate by two-thirds by two thousand fifteen.
Still, he points to some hopeful signs -- including a large reduction in the child death rate in Malawi.
UNICEF says the death rate for children under the age of five has fallen twenty-eight percent since nineteen ninety.

The permanent death-tax rate tops out at 55 percent.
FORBES: Estate Tax Cliffhanger

The death rate is the number of people per thousand who die in a particular area during a particular period of time.

死亡率
The early death rate was 12.9%.
早期死亡率12.9%。
病死率
Case-fatality rate was 72.7%. The death rate of Ⅲ group is significantly higher than Ⅰ group and Ⅱ group.
全組病死率為37.0%。
農(nóng)業(yè)科學(xué)
死亡率
The death rate of bollworm 72 h after eating the leaves was significantly higher than the death rate of bollworm 144 h after eating the leaves.
棉鈴蟲(chóng)取食72 h后的死亡率明顯低于144 h后的死亡率。
致死率
The final death rate of Matrine 800×, 1000×,1200×are 76.5%, 88.2%, 96.1% respectively.
苦參堿800倍、1000倍、1200倍液的最終致死率分別為76.5％、88.2％、96.1％。
死株率