hhpabbr.=hydraulic horsepower 液压马力；half-hardy perennial 半耐寒多年生的Hn.英语字母表的第八个字母氢的化学符号.abbr.（铅笔心）硬的(=hard)h beam cap工字钢顶梁H. bovis牛皮蝇Hjelmeland耶尔梅兰Hhypanmion羊水过少Hv-group超群HV cabinet高压柜hvdrocoral水螅珊瑚类HVE tourism高职旅游H. diphos双线血蛤Hjortenklev约滕克莱夫