... blind ditch 暗沟 bone pitch 粘沥青 bull ditcher 大型挖沟机 ...
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... 敷沥青 bituminous application 骨沥青 bone pitch; bone tar pitch 灌沥青 pitch grouting ...
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bone tar pitch 骨沥青
bone pitchbone tar pitch 骨沥青
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Compression cancellous bone screw with both ends thread is a Variable pitch screw designed tO provide rigid 'fixation of cancellous bone fracture.
双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距，无螺帽。
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Salespeople use it to bone up on customers before making a pitch.
FORBES: Is Your Product's Price Right?
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