短語詞組短語critical l part 急需零件safety critical part 安全關(guān)鍵件critical part s 關(guān)鍵零部件critical part of instrument 儀器的核心most critical part 最關(guān)鍵部分base and a critical part 基礎(chǔ)和重要組成部分critical angle of driving part 主動(dòng)件臨界轉(zhuǎn)角 返回 critical part