The hum of the environmental scrubbers was the only sound in the prep room, a low-frequency thrum that vibrated in Lieutenant Kaelen’s teeth. He stood before the holographic display table, the sterile light of the briefing room washing out the color from his fatigue uniform.
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The PDF is well-organized and easy to navigate, with clear headings, concise paragraphs, and useful diagrams. The table of contents and index make it simple to find specific information, and the use of bookmarks and hyperlinks enables quick access to different sections. The hum of the environmental scrubbers was the