Holland and Holland (firearms manufacturer)荷兰和荷兰(枪支制造商) Hydrology and Hydraulics (USACE)水文、水力(USACE) hemoglobin and hematocrit血红蛋白和血细胞比容 Hot and Heavyadj. 猛烈(精力充沛) Hematocrit and Hemoglobin比容和血红蛋白 Holland and Hart LLP (law firm)荷兰和鹿公司(律师) Handel & Haydn Society (since 1815)韩德尔、海顿的社会(自1851年) Hurt & Heal (gaming)伤害和治疗(游戏) Hemoglobolin and HematocritHemoglobolin和比容