| 摘要 |
liquefying but incompletely melting glass batch material (25,26), sending it a narrow horizontal channel (20,21) with a source of heat, convecting in the refiner (10) of a still higher temp. with a forwardly flowing surface stream at the outlet end and a rearwardly flowing surface stream at the inlet end, heating glass batch of the channel till the batch joins a flow in the refiner.
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