单词	pitch wheel
释义	pitch wheel 相互啮合的齿轮
随便看	Jack Territo comments Jack thanked me a lot Jack.Thanks.But I have a question jack, the Jack the Bear jack the giant killer Jack the Giant Killer Jack the Giant-killer Jack the Lad Jack-the-lad jack-the-lads jack-the-rags jack up the price jackup unit jack-up unit Jack used to assist Mary in her lessons jack used to hunt Jack usually awakes at five Jack Van Bebber Jack the ripper Jack the Ripper memorial tour jack the rippers Jack: These are yours Jack: These are yours,and those are mine Jack: These are yours, and those are mine