[数]?比例抽样

... 等距抽样;系统抽样;机械抽样;systematic sampling 比例抽样;proportional sampling 钽舟取样;tantalum boat sampling ...

[环境]?按比例采样

... 监测monitoring 按比例采样proportional sampling 水样sample ...

?按比例取样

... proportional reset controller 比例重整调节器 proportional sampling 按比例取样 proportional tax 比例税 ...

[统计]?按比例抽样

...al to prediction) : 按与预计值大小成比例的概率抽样 proportional sampling : 按比例抽样 probability proportional sampling : 概率比例抽样 ..