黑穗病;丝黑穗病

玉米抗丝黑穗病基因RAPD分析

高粱抗丝黑穗病基因的RAPD初步分析

lose/keep one's head

Project Head Start

distention and pain in the head

dizzy head upon rising

hexagon head bolt

deputy headmaster, deputy head

headup displays

laying head