从而进一步优化了系统结构，减轻了系统负荷。
It optimized the system structure and the payload of the system.
与亚燃冲压相比，发动机内静温、静压低，从而减轻了结构强度负荷，简化了结构设计。
Meanwhile, compared with the ramet, it has lower static temperature and pressure in the combustion chamber, thus obviously decreasing its structure loads as well as simplying its structure designing.
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