pushback pin
... push-away buggy 运管子和其它设备的小车 pushback pin 回推杆；开模杆 push-button bulk plant 自动操作的油库 ...
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先回程推杆 Advance return ejector pin
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我发现那些懂得定制推杆好处的女性球手百分之百回购买新的推杆。
I find that women who understand the advantages of putter fitting will purchase the putter 100 percent of the time.
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