单词	first-level code
释义	first-level code [电] 五阶码
随便看	manned orbital transfer vehicle (motv) manned orbiting laboratory manned platform manned pontoon manned pressure capsule manned reconnaissance satellite manned reentry manned return vehicle reentry manned rocket manned-satellite manned satellite manned space manned spacecraft manned spacecraft backup landing site manned spacecraft center manned spacecraft engineering manned spacecraft launch manned spacecraft loading room manned spacecraft main landing site manned spacecraft recovery manned spacecraft system manned spacecraft telemetry manned space engineering system manned spaceflight manned space flight qwgr qwgrhwlz qwgs qwht qwhz qwja qwjc qwjw qwlg qwml 28631 28632 28633 28634 28635 28636 28637 28638 28639 28640