1.
A person with good manners is always kind and polite.
有礼貌的人总是和和气气，彬彬有礼的。
2.
He pats her kindly on the shoulder.
他和和气气地拍拍她肩膀。
3.
How many lovers can part as friends?
又有多少情侣能和和气气地分手呢？
4.
The house is fitted up with gas and steam heater .
房子里装有煤气和暖气。
5.
updraft and downdraft
上曳气流和下曳气流
6.
Heating, Ventilating and Air-conditioning Unit
暖气、通风和冷气股
7.
air arc cutting and gouging electrode
电弧气割和气刨电极
8.
cylinder scavenging and supercharging system
气缸扫气和增压系统
9.
gas-air mixture
汽油和空气的混合气
10.
clean fuels such as gas, liquified petroleum gas and natural gas
煤气、液化石油气和天然气等清洁燃料
11.
Qi in the human body is composed of congenital qi and acquired qi.
人体之气由先天之气和后天之气组成。
12.
Well, it's very mild.
嗯，气候非常温和。
13.
Products: Highly Toxic Gases, High-Purity Gases, Rare Gases and Pyrophoric Gases
产品：剧毒气体，高纯度气体，稀有气体和自燃气体
14.
Researches on Microscale Chemistry Experiments of Preparation and Propertyes of Hydrogen, Oxygen and Chlorine;
氢气、氧气和氯气的制备和性质微型化实验探索
15.
To inhale and exhale air, especially when naturally and freely.
呼吸呼气和吸气，尤指自然地和任意地
16.
Sit by the radiator and get warm.
坐在暖气旁边,暖和暖和。
17.
"adjusting valve tappet clearances (also called adjusting valve lash), grinding valves and valve seats."
气门维修包括调校气门间隙(也称气门余隙),研磨气门和气门座.
18.
(of weather or climate) free from extremes; mild; or characteristic of such weather or climate.
（天气或气候）既不冷也不热的；温和的；或以温和的天气或气候为特征。