LLCD is NASA's first system for two-way communication using a laser instead of radio waves.
LLCD是NASA的第一个使用激光而不是无线电波的双向通信系统。
LLCD is a short-duration experiment and theprecursor to NASA's long-duration demonstration, the Laser Communications RelayDemonstration (LCRD).
LLCD是一个短期的实验，它是NASA长期的演示-激光通信中继演示（LCRD 项目）- 的初期形式。
LLCD is a short-duration experiment and theprecursor to NASA's long-duration demonstration, the Laser Communications RelayDemonstration (LCRD).
LLCD是一个短期的实验，它是NASA长期的演示-激光通信中继演示（LCRD 项目）- 的初期形式。
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