The shortwave communications is indispensability required in certain field and situation, and its security has always been a widespread concern.
短波通信在某些场合是不可替代的，其安全问题一直为人们所关注。
Solar flares and energetic particle events also complicate matters by interrupting satellite and shortwave radio communications.
太阳耀斑和高能粒子则会干扰人造卫星及短波广播通讯系统运作。
Shortwave communication plays a vital role in long haul communications, on account of its unique merits such as low cost, convenience to be generated and strong resistance to damage.
短波通信具有成本低、架设灵活、抗毁能力强等优点，在远距离通信中起着举足轻重的作用。
Shortwave communication plays a vital role in long haul communications, on account of its unique merits such as low cost, convenience to be generated and strong resistance to damage.
短波通信具有成本低、架设灵活、抗毁能力强等优点，在远距离通信中起着举足轻重的作用。
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