A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
HVAC是供暖（Heating）、通风（Ventilation）与空气调节（Air Conditioning）的英文缩写，中文全称为"供暖、通风、空调"，属于建筑环境控制领域的核心技术体系。该技术以传热学、流体力学和工程热力学为理论基础，通过温度调节、湿度控制、空气净化及循环系统，实现建筑物或交通工具内部环境的舒适 ...
屋顶HVAC单元，可看到新鲜空气入口 暖通空调 （heating, ventilation and air conditioning，HVAC）是“ 暖气 、 通风， 空气调节 ”的简称，指室内或车内负责暖气、通风，空气调节的系统或相关设备。 暖通空调系统的设计应用到 热力学 、 传热学、流体力学 及 流体机械，是 机械工程 领域中的重要分支学科 ...
家庭或建筑物中有许多我们认为理所当然的系统和组件，例如屋顶、管道和电力。可能被低估的系统中最主要的是 HVAC：由一个微型恒温器驱动的庞大的加热和冷却系统。 什么是暖通空调？HVAC 是 Heating、Ventilation …
HVAC系统是一种将空气温度和通风控制结合在一起的组合系统。通常包括空气通风孔、加热系统和冷却系统。通常情况下，它们被打包成一个完整的系统，通常称为HVAC。 HVAC系统不仅可以通风、加热和冷却，还可以清除区域内的灰尘和细菌，提供更健康的环境。HVAC系统可以在小型和大型范围内使用 ...
What is HVAC? HVAC stands for heating, ventilation, & air conditioning. It encompasses the equipment used to control the heating & cooling indoors.
供暖、通风和空调（HVAC）是调节封闭空间内温度、湿度和空气质量的机械系统的统称。这些系统在寒冷环境下提供热量，在温暖环境下排出多余热量，并交换室内外空气，以维持可接受的污染物水平和湿度平衡。在住宅、商业、工业和酒店等各类建筑中，HVAC系统的安装与居住者的舒适度、健康 ...
Discover the types and uses of different HVAC systems and understand heating, ventilation, and air conditioning essentials in our comprehensive 2025 guide.
Learn HVAC meaning and how it helps regulate indoor temperature, airflow, and air quality for optimal home comfort.
HVAC是Heating, Ventilation and Air Conditioning 的英文缩写，就是供热通风与空气调节。 既代表上述内容的学科和技术，也代表上述学科和技术所涉及到的行业和产业。 HVAC又指一门应用学科，它在世界建筑设计和工程以及制造业有广泛的影响，各国都有HVAC协会，中国建筑学会暖通分会即中国的官方代表机构 ...
HVAC stands for Heating, Ventilation, and Air Conditioning. Discover the HVAC meaning and how HVAC systems work together to heat, cool, and improve indoor air quality in your home. Learn about components, energy efficiency, and tips for choosing the right system from Carrier.
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