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ratchet gear
auto. 棘轮机构
compr. 棘齿轮
met. 棘轮装置
oil 棘轮齿轮; 棘轮机构
tech. 棘轮传动装置
ratchet -wheel gear
met. 棘轮机构
ratchet gear
: 4 phrases in 2 subjects
Oil / petroleum2
Technology2