A major advantage of fluidised beds is that they provide a well mixed, high surface area, fluid-solid system which is useful for efficient reactions and heat transfer.
流化床的一大优点在于能产生一个充分混合的具有很大表面积的流体与固体的接触系统，这对高效反应和传热都很有用。
A well in which the fluid flows to the surface under its own pressure. The recharge area for the aquifer is higher in elevation than the wellhead.
在自喷井中流体在其自身的压力下流至地面。含水层的补给区的海拔高于井口装置。
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