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单词
grassland reclamation
释义
grassland reclamation
Encyclopedia
农学
中国草业史
释
grassland reclamation
草地开垦
人为采取工程措施、生物措施或综合措施开发草地资源,使其改造成为以种植、养殖为主的农用土地类型的社会生产实践活动。
随便看
mean observatory
mean of a probability distribution
mean of a random variable
mean of a stationary process
mean of dynamical variable
mean of means
mean of statistical data
mean on a group
mean on a semigroup
mean on the space of bounded real functions
mean opposition distance
mean orbit
mean orbital element
mean order statistic
mean ordinate
mean oscillation
mean oval
mean over the column
mean over the period
mean over the row
mean parallax
mean-periodic function
mean photoelectric magnitude
mean photographic magnitude
mean photovisual magnitude
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