natural monopoly
un. 自然垄断；天然专利
[网络] 自然独占；天然垄断；自然垄断性
热门查询
- hay n. 干草 vt. 把晒干 vi. 割草晒干
- inquire vi. 询问；查究；询价 vt. 询问；查究；问明
- downspout n. 水落管，落水管（将雨水从屋顶排至水沟）
- gain n. 增加；利润；收获 vi. 增加；获利 vt. 获得；增加；赚到 n. (Gain)人名；(英、匈、法)盖恩
- Stonehaven [人名] 斯通黑文; [地名] [英国] 斯通黑文
- deregulation n. 违反规定，反常；撤消管制规定
- shirtwaist n. 仿男式女衬衫
- frequent adj. 频繁的；时常发生的；惯常的 vt. 常到，常去；时常出入于
- willfulness n. 任性；故意
- unrequited adj. 无回报的；无报酬的
- injector n. 注射器；注射者；注水器
- attended v. 参加；注意；照料（attend的过去分词）；伴随
- uplift n. 举起，抬起；道德的向上；精神的高涨 vt. 提高；抬起 vi. 提高；上升；升起
- bandpass n. [电子] 带通，通频带
- ambulance n. [车辆][医] 救护车；战时流动医院
- Oskar 蛇形丘
- cyanide n. [无化] 氰化物
- exporter n. 出口商；输出国
- Corbin 苛宾铝铜合金
- yawning n. 打呵欠 adj. 打哈欠的，张着大嘴的 v. 打哈欠（yawn的ing形式）
考试词汇表
- Health Service,Occupational
- Health Service,Reproductive
- Health Services Evaluations
- Health Visitors Association
- Health and Safety Executive
- Health and Safety Inspector
- Health and Welfare Planning
- Heaney hysterectomy forceps
- Hearing Loss,High Frequency
- Hearing Loss,High-Frequency
- Hearing summating potential
- Heart Associations,American
- Heart Septal Defects,Atrial
- Heart Syndrome,Hyperkinetic
- Heart Ventricles,Artificial
- Heart of America Foundation
- Heart-Lung Transplantations
- Heath nasal cutting forceps
- Heath nasal polypus forceps
- Heaviside expanxion formula
