long-haul communication

基本解释

New technology of high-speed and ultra long haul fiber-optic communication system;
超长站距光传输技术在电力系统具有广阔的应用前景。
In future years, polarization-mode dispersion (PMD) is one of main obstacles in high bit rate, large capacity and long-haul optical fiber communication systems.
未来几年内，偏振模色散将是限制光纤通信系统向更高速率、更大容量和更长距离发展的主要障碍之一。
HTTP is great for long-haul, client-initiated communication, but it definitely has its limitations (which he acknowledges, openly, to his credit), at least to internal-facing consumers.
HTTP很适合远距离的、客户端发起的通信，但它绝对存在局限（灰镜人也坦率承认，值得赞扬），至少对于面向内部的应用存在缺点。