secondary line

短语词组

短語

• Secondary compartment line 區劃副線
• Secondary Trunk Line 二乾
• secondary geodesic line 二次測地線
• parking secondary brake line 停放緊急制動琯路
• secondary sensitivity line 次霛敏線
• secondary spectral line 二級光譜線
• Secondary electron line scanning 二次電子線掃描
• secondary ground line 副基線
• secondary power line carrier 低壓電力線載波
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