In the end, the key components such as cyclone separator, circulating ash returning equipment, air distributor, firing device, observing window, gate for digging up the dreg are designed.

对旋风分离器、固体返料装置、布风装置、点火装置、观察窗、扒渣门等主要部件进行了专门设计和改进工作。

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Watching our security man half out the window, firing back.

CNN: Behind the Scenes: Shootings are painful reminder