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提出了直升机模型桨叶颤振试验技术及试验方法。
An experimental technique and method for flutter research of helicopter blade model are proposed.
youdao
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直升机的桨叶割断了输电线。
The helicopter's blades had sliced through power cables.
youdao
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直升机的桨叶割断了输电线。
The helicopter's blades had sliced through power cables.
youdao