K is for the safety coefficient from the overall structure can bear the load to, and it could be more accurately to reflect the structural strength design of a combination of factors.

因安全系数K是从整体结构所能承受的荷载来考虑的，故能较正确地反映结构强度设计时的综合因素。

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Test results provide an important basis for strength design and structural optimization of propeller blades.

为螺旋桨桨叶的强度设计与结构优化提供了重要依据。

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Then, the matching design can be accomplished by means of impact load spectrograms so as to perform the optimal structural design and to make further improvement on dynamic strength program.

再利用冲击载荷谱图作为实现匹配设计的技术途径，以期实现最佳的结构设计，从而进一步完善了动力强度设计程序。

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