... preignition phase 提前点火阶段 preliminary combustion 预燃 preliminary design 初步设计 ...
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The preliminary test result shows that the combustor can be reliably ignited under the condition of large nozzle throat, the combustion process is stable and combustion efficiency is high.
初步研究结果表明，该方案在大喷管条件下点火起动可靠，燃烧过程比较稳定，燃烧效率高。
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