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- This paper illustrates the structure and functions of the small scale DCS when it is usedin 20t/h gas burning boiler control,meanwhile provides the control schemes for typical loops,and the algorithm to optimize wind to coal ratio by thermal signal. 以20t/h燃气炉为例，介绍小型DCS（集散控制系统）应用于工业锅炉控制时的结构和功能，给出了典型回路的控制方案和利用热量信号实现风煤比寻优的算法。
- Please open a window to allow the air to circulate. 打开窗子让空气流通。
- The windows permit light and air to enter. 这些窗户采光及通风性能良好。
- Let everybody give air to his view. 让每个人都发表意见。
- Iron reacts with water and air to produce rust. 铁与水和空气起化学反应而生锈。
- The ship called at Gibraltar to coal. 这艘轮船停靠于直布罗陀港加煤。
- Diamond is chemically allied to coal. 金刚石与煤在化学上是同类的。
- Every day the chimneys of factories pour a large volume of smoke to the air to pollute it. 工厂的烟囱每天把大量的烟雾排放到空气中去，造成空气污染。
- ratio of air to coal 风煤比
- The ship called at Boston to coal. 船停靠在波士顿加煤。
- In this plant oil is supplementary to coal as fuel. 在这个工厂，原油是煤的补充燃料。
- The advised R resin/coal tar/noncaking coal ratio is 5/20/100. 适宜的R-树脂／煤焦油／不粘煤配比为5／20／100。
- Ordinarily one does not believe air to have weight. 人们通常认为空气没有重量。
- He always likes to give air to his knowledge. 他总是喜欢炫耀自己的知识。
- And I will walk across the air to you. 走到半空中好遇到你。
- Deep peace of the flowing air to you. 平安围绕着你。
- The bigger the containing coal ratio, the better the absorptivity of microwave. 配碳比提高，物料吸收微波的能力有所提高；
- He sucked hard for air to keep breathing. 他拼命吸气以维持呼吸。
- As water is to fish so is air to man. 水之于鱼就像空气之于人。
- Fly-ball: A ball hit in the air to the outfield. 腾空球：被击出飞向外场的球。
