Unit head  装置扬程

unit head machine  组合头钻床

4-unit Infrared Guiding-head  四元红外导引头

Deputy Head Preventive Education Unit  毒品防范教育组副主任

Head Applied Psychology Unit  应用心理管理科科长

Head Preventive Education Unit  毒品防范教育组主任

Head Proceeds of Crime Unit  追索犯罪得益组主任

Head Surveillance Unit  侦察组主任

twin-horse head pumping unit  双驴头游梁式抽油机

unit type head  动力头

divition of “super unit combine—super unit—unit”  超单元组合—超单元—单元划分

hammer head [= hammer head shark]  双髻鲨; Y髻鲨

head to head  对遇; 交头接耳地

head to head configuration  头对头结构

head to head structure  头接头结构

head wind [= head sea]  逆风; 顶[头]风; 逆浪

head-to-head  肉搏战

head-to-head polymer  头-头聚合物

hexagon socket countersunk head cap head screw  内六角沉头螺钉

hexagon socket head cap head screw  内六角圆柱头螺钉