write read head [计] 写读头 ; 读写磁头

read-write head [计] 读写头 ; [计] 读写磁头 ; 读写兼用头

read and write head 读写磁头

read write head 读写头 ; 读写磁头

magnetic read write head 磁读写头

read-write-erase head assembly 读写清洗磁头组合件

magnetic read-write head 磁读写头

read-after-write head [计] 写后读出磁头 ; 写后读磁头

dual-gap read-after-write tape head 双隙写后读出磁带头 ; 双隙写后读磁带头