backcross的造句（例句）：
1、The results were verified by backcross inheritance experiment.
上述结果通过回交试验得到进一步验证。
2、The method can be conveniently applied to practical backcross breeding programs.
该方法可以很方便地应用于实际的回交育种。
3、The related techniques in backcross breeding were also discussed.
对回交育种中的有关技术也进行了讨论。
