cross-over experiment交叉: cross connection; intersect; ...型: mould; model实验: experiment; test; trial run交叉型: chiasma type; chiasmatype; pattern of intersection; scissors cut&交叉型假设: chiasma type hypothesis下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:交叉型实验，即可在微信中查询翻译
