这种燃料可以降低火箭的研发与操作成本，储存时也比单纯的液体燃烧更为安全。
These rockets can be cheaper to develop and operate, and the fuel is safer to store than in purely liquid-fuelled ones.
第一个使用液氧碳氢推进剂的国产液体燃料火箭发动机被安装在了火箭的E段上，它可以提供5.6吨的推力。
The first native liquid-fueled rocket engine used a liquid oxygen and carbon-hydrogen propellant, provided 5.6 tons of thrust, and was installed in unit e.
为了避免过热，因为在任何液体燃料火箭进程的混合物故意不理想。
To avoid overheating, the mixture in that process in any liquid-fuel rocket is deliberately not optimal.
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