| 序号 | 英文 | 音标 | 词性 | 中文 |
| | HAT | | | =Hardness Assurance Test 硬度保证测试 |
| | HAV | | | = Hot Air Vulcanization 热空气硫化 |
| | HAW | | | =Heavy Antitank Assault Weapon 重型反坦克攻击武器 |
| | HAWS | | | =High Aromatic White Spirit 高芳烃石油溶剂 |
| | HB | | abbr. | [军] Heavy Barrel, 厚膛壁身管 |
| | HBA | | | [计] 主机总线适配器 |
| | HBM | | | =Halt Burst Mode 暂停成组传输方式 |
| | HBMS | | abbr. | His(或Her)Britannic Majesty's Ship 英国皇家海军舰艇 |
| | HBS | | | =Harvard Business School 哈佛大学商学院 |
| | HC | | abbr.；abbr. | abbr. [军] Hollow Charge, 空心装药；abbr. [军] High Capacity, 高容量 |
| | HCACHE | | | [计] 硬盘高速缓存 |
| | HCF | | abbr. | 〈数〉最高公因式，最大公约数 |
| | HCG | | abbr. | human chorionic gonadotrop(h)in 人体绒(毛)膜促性腺激素 |
| | HCL | | abbr. | high cost of living高生活费 |
| | HCS | | abbr. | human chorionic somatomammotrophin[生化]人绒毛膜生长促乳素 |
| | HCSS | | | [计] 高容量存储系统 |
| | HD | | | [计] 硬盘 |
| | HD-MAC | | abbr. | (欧洲研制的高清晰度电视系统)HD-MAC电视系统 |
| | HDAM | | | [计] 层次直接存取方法 |
| | HDD | | n. | [计] (=hard disk drive)硬盘驱动器 |
| | HDDS | | | =High-Density Data System 高密度数据系统 |
| | HDDT | | | =High Density Digital Tape 高密度数字磁带 |
| | HDL | | abbr. | high density lipoprotein[生化]高密度脂蛋白 |
| | HDLC | | | [计] 高级数据链路控制 |
| | HDML | | | [计] 宿主型数据操纵语言 |
| | HDPE | | | [化] high-density polyethylene 高密度聚乙烯 |
| | HDTV | | abbr. | High-Definition TV,高清晰度电视 |
| | HE | | abbr. | 烈性炸药 (high explosive) |
| | HE-SD | | abbr. | [军] High Explosive-Self Destructive, 自爆榴弹 |
| | HEAD | | | =High-Explosive Delayed Action 高爆延进炮弹 |
| | HEALS | | | =Honeywell Error Analysis and Logging System 霍尼韦尔错误分析与记录系统([美]Honeywell公司) |
| | HEAO | | abbr. | high-energy astronomy observatory 高能天文台( 收集天文现象的科学卫星) |
| | HEAP | | | =High-Explosive Armour-Piercing 高爆穿甲(弹) |
| | HEAT | | | =High-Explosive Anti-Tank (Projective)反坦克高爆(弹) |
| | HEC | | | =Harbour Entry Control 港口进入管制 |
| | HEDP | | abbr. | [军] High Explosive-Dual Purpose, 双用途榴弹 |
| | HEED | | | =High Energy Electron Diffraction 高能 电子衍射 |
| | HEES | | | =High Energy Electron Scattering 高能电子散射 |
| | HEF | | | =High-Energy Forming 高能成形 |
| | HEFA | | abbr. | Higher Education Facilities Act 高等教育设施法 |
| | HEI | | abbr. | [军] High Explosive Incendiary, 杀伤燃烧弹 |
| | HEIT | | | =High-Explosive Incendiary Tracing Shell 杀伤曳光燃烧弹 |
| | HELP | | | =Helicopter Electronic Landing Path 直升飞机电子着陆系统 |
| | HEOS | | abbr. | highly eccentric orbit satellite 高偏心轨道卫星 |
| | HEP | | | =High-Energy Particle 高能粒子 |
| | HEPA filter | | | =High Efficiency Particulate Air filter 高效微粒空气过滤器 |
| | HEPC | | | =Hydro-Electric Power Commission 水力发电委员会[加, 美] |
| | HEPDEX | | | =High-Energy Proton Detection Experiments 高能质子探测实验 |
| | HEPEX | | | =Heavy Element Partitioning by Extraction 重元素萃取分离法 |
| | HEPL | | | =High Energy Physics Laboratory 高能物理实验室([美]Stanford 大学) |
| | HEPS | | | =High Energy Proton Spectrometer 高能质子分光计 |
| | HER | | | =High Energy Ray 高能射线 |
| | HERA | | | =High-Explosive Rocket Assisted 高爆火箭助推(器) |
| | HERF | | | =High Energy Rate Forming 高能快速成形(包括电磁成形, 爆炸成形等) |
| | HERMES | `h\:mi:z | abbr. | heavy element and radioactive material electromagneticseparator 重放射性同位素电磁分离器 |
| | HES | | | =Heavy-Enamel Single-Silk 厚漆单层丝色的 |
| | HESH | | abbr. | [军] High Explosive Sqush Head, 碎甲弹 |
| | HET | | | =Heavy Equipment Transporter 重型设备运输车 |
| | HETP | | | =Height Equivalent to a Theoretical Plate[化]理论板当量[等效]高度 |
| | HETS | | | =Height Equivalent of a Theoretical Stage[化]理论级高度当量 |
| | HETU | | | =Height Equivalent to Transfer Unit 当量传质单元高度 |
| | HEU | | | =High-Enriched Uranium 高浓缩铀 |
| | HEW | | | =(Department of) Health, Education, and Welfare 卫生教育和福利部[美] |
| | HEWC | | | =Highly Enriched Waste Concentrates 高浓缩度废物浓缩物 |
| | HF | | abbr. | [军] High Frequency, 高频 |
| | HF reject | | | 高频抑制 |
| | HF spherical wave horn | | | 高频球面波喇叭[号筒] |
| | HF-24 | | | (Marut“风神”) 印度自己研制的第一种超音速战斗机。 |
| | HFA | | | =Heavy Field Artillery 重型野战炮 |
| | HFAA | | | =High Frequency Airborne Aerial [Antenna]高频机载天线 |
| | HFAK | | | =Hollow Fibre Artificial Kidney 空心纤维人造肾 |
| | HFBR | | | =High Flux Beam Reactor 高(中子)通量束反应堆 |
| | HFC | | abbr. | high-frequency current [电]高频电流 |
| | HFCDF | | | =High-Frequency Detecting and Finding高频探测(器) |
| | HFE | | abbr. | [军] Human Factors Engineering, 人因工程学 |
| | HFF | | | =High-Frequency Furnace [冶]高频电炉 |
| | HFIR | | | =High Flux Isotope Reactor高(中子)通量同位素反应堆 |
| | HFO | | | =Heavy Fuel Oil 重燃料油 |
| | HFP | | | =Helium Fuel-tank Pressurization 氦燃料箱增压 |
| | HFR | | | =High Flux Reactor[核]高(中子)通量反应堆 |
| | HFS | | | =Hyperfine Structure 超精细结构 |
| | HFSV | | | =High Flow Shut-off Valve 高速关闭阀 |
| | HFW | | | =Hole Full of Water 充满水的钻孔 |
| | HFX | | | =High Frequency Transceiver 高频收发报机 |
| | HG | | | =Hand Generator 手摇发电机 |
| | HGH | | | =Human Growth Hormone 人体生长激素 |
| | HGV | | abbr. | Heavy Goods Vehicle, 载重物车辆 |
| | HH | | abbr. | （铅笔心硬度） HH, 倍硬(double- hard) |
| | HHD | | abbr. | <拉>Humanitatum Doctor 古典文学博士(=Doctor of Humanities) |
| | HHF | | | =Hyper-High Frequency 超高频 |
| | HHFA | | abbr. | Housing and Home Finance Agency (美国)住宅资产经理处 |
| | HHPA | | | =Hexahydrophthalic Anhydride[化]六氢化酞酐 |
| | HHPC | | | =High Harmonic Pitch Control 高谐波音调控制 |
| | HHR | | | =High Hysteresis Rubber 高磁滞橡胶 |
| | HHS | | abbr. | (Department of)Health and Human Services(美国)卫生和福利部 |
| | HHT | | | =Higher High Tensile 抗张强度特高的 |
| | HHV | | | =High Heat Value高热值 |
| | HHW | | | =Higher High Water 高高潮 |
| | HI | | | =Hawaiian Islands夏威夷群岛 |
| | HI-FI | 5haIfaI | abbr. | High-Fidelity, 高保真 |
| | HI. | | | Hawaii 美国夏威夷州 |