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锁线机
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book thread sewing machine
锁线机
将书帖通过锁线制成书芯的设备。厚本平装书和精装书印后装订的重要机械。
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On My Way to Xuancheng
Onnes
Onnes equation
Onnes equation of state
On New Democracy
On Newsreel-making
ONOC
Ono Chikukyō
on-off element
on-off measurement
on-off time apportionment method
Ono inequality
onomasiological dictionary
onomastic dictionary
Onon River
On Operatic Singing
Onora O' Neill
on-orbit calibration
on-orbit collection and management of excrement and urine technique
on-orbit control
on-orbit liquid and gas separator technique
on-orbit telemedicine
on-orbit wastewater treatment technique
on-orbit water management system
On Origin of Regular Scripts
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