| 摘要 |
A burner apparatus includes a first tube having a first longitudinal bore and a second tube having a second longitudinal bore. The second tube is disposed within the first longitudinal bore such that an annular space is defined between the second tube and the first tube. The burner apparatus further includes a nozzle formed at a tip of the second tube. A plurality of side holes are formed in the nozzle. The side holes are slanted relative to a longitudinal axis of the nozzle and are in communication with the second longitudinal bore.
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