单词	spare bit
释义	spare bit [计] 备用位
随便看	casing elevator-spider casing end casing fat casing feed system casing fill-up equipment casing fin tube casing fitting casing flange casing float collar casing float shoe casing flusher casing flushing cock casing for pendulum clock casing for spark adjustment casing frame casing gage casing gauge casing glass casing grade casing grip casing guide casing guide of pump casing hanger casinghead casing head 苦口婆心苦口良药苦口逆耳苦大仇深苦尽甘来苦尽甜来苦心孤诣苦心积虑苦心经营苦思冥想えいぞう【映像】えいぞくえいぞく【永続】えいたいえいたい【永代】えいたつえいたつ【栄達】えいたんえいたん【詠嘆（詠歎）】えいだつ