... 纯族 pure races 纯系选择 pure selection 纯系分离 pure separation ...
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通常有两 种选择策略：其一为纯选择（pure selection）记为S=P，即种群中 每一个体根据其适配值；其二为保优策略（elitist strategy），记 为S=E，即先用纯选择进行选择，然后将best s...
pure line selection [农学] 纯系选择 ; 纯系育种
pure breeding selection 纯育选择
pure-breeding selection 纯种选择
pure breed selection 纯种选育
OfficeMax is at a huge disadvantage to the pure online vendors, who can offer the same selection without the cost of building and maintaining stores.
FORBES: OfficeMax Stock Looks Perched For Failure
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