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后节距 背景距
backpitch  detail>>
后节距
back pitch  detail>>
绕组的前后节距
back and front pitch of a winding  detail>>
后节
deutomerite posterior nodule  detail>>
节距
pitch; step ◇节距规 pitchometer; 节距检验器 pitch tester  detail>>
后节点
posterior nodal point rear nodal point rear node  detail>>
肾后节
posterior renal segment  detail>>
背景
(布景; 衬托主体事物的景物; 对人物、事件起作用的历史条件或现实环境) background; backdrop; setting  短语和例子   历史背景...  detail>>
肠系膜后节
ganglion mesentericum caudale  detail>>
眼后节注射
injection of posterior segment of eye  detail>>
眼后节切开术
incision of posterior segment of eye  detail>>
背节距
backpitch  detail>>
变节距
variable-pitch  detail>>
齿节距
pitch of teeth  detail>>
大节距
coarse pitch steep pitch wide spacing  detail>>
道节距
track pitch  detail>>
点节距
dot pitch  detail>>
短节距
short pitch shortpitch  detail>>