单词	mixed strain
释义	mixed strain 混合菌
随便看	positive definite rational function positive definite scalar product positive definite second variation positive definite sequence positive definite positive-definite positive definite advection scheme positive definite solution positive definite solutions positive definite symmetric kernel positive definite symmetric matrices positive definite symmetric matrix positive definite transformation positive definitive system positive definitness positive degree positive delivery positive delivery lag positive delivery lay positive delivery of oil positive density positive density-dependent factor positive dependence positive derail Positive description