| 释义 |
back·cross·ed 英bækk'rɒs美bækk'rɒs BNC²³⁶²¹³⁺¹
基本英英搭配
v.使回交²⁰n.回交⁸⁰原型backcross的过去式和过去分词过去分词backcrossed现在分词backcrossing三单backcrosses
Verb:
mate a hybrid of the first generation with one of its parentsbackcross ratio回交率second backcross generation第二回交子代…backcross parent回交亲本repeated backcross重复回交recurrent backcross相互回交backcross breeding回交育种法first backcross generation第一回交子代,回交一…backcross hybrid回交杂种backcross mating医 回交, 逆代…third backcross generation第三回交子代… |