In particular, our country is vast, relatively frequent geological disasters and other means of communication can not be guaranteed, short-wave communications role is particularly important.
尤其是我国幅员广阔，地质灾害相对频繁发生，其他通信手段得不到保证时，短波通信的作用显得尤为重要。
In particular, our country is vast, relatively frequent geological disasters and other means of communication can not be guaranteed, short-wave communications role is particularly important.
尤其是我国幅员广阔，地质灾害相对频繁发生，其他通信手段得不到保证时，短波通信的作用显得尤为重要。
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