As the air-breathing engine, the performance of solid rocket ramjet is determined not only by structure of engine and the performance of propellant, but also by flight condition.

作为吸气式发动机，其性能不仅取决于发动机本身结构和推进剂性能，与飞行状态也有密切的联系。

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This should not be detrimental in any way to the performance of the propellant.

这是不应该，不利于以任何方式表现的推进剂。

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The burning rate of the fuel-rich propellants is the parameter which is important for Ducted Rocket design and performance analysis and is main inspection criterions of propellant prescriptions.

贫氧推进剂燃速是固体火箭冲压发动机设计和性能分析的重要参数，也是对推进剂配方进行检验验收的主要指标。

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Beyond this 200-day limit, the confidence in the performance of the vehicle drops off, and in particular in the status of the propellant in their manoeuvring thrusters.

BBC: November deadline for ISS crews