碳接触
carbon contact
陶瓷拾音器
ceramic pickup
碳棒微音器
carbon rod microphone
碳精微音器
carbon microphone
陶瓷微音器
ceramic microphone
梯度微音器
gradient microphone
铁检查听音器
siderophone
听水音器
aquaphone
听音器
listening gear
听诊测音器
stethophonometer
推挽微音器
push-pull microphone
替续器接触
relay contacts
头至带接触
head-to-tape contact
外因接触震动
external caused contact chatter
碳
carbon
carbon
C; carbon; carboneum
碳13
C13
碳-13磁共振
carbon-13 magnetic resonance (13CMR)
碳-13核磁共振
carbon-13 magnetic resonance (13CMR)
碳14
carbon-14
C14
碳八芳烃分离
separation of C-8 aromatics