1) double thread hob
双头滚刀
1.
The design points and practical application results of large diameter double thread hob to machine large module gears or large profile shifted gears are introduced.
介绍了加工大模数、大变位齿轮的大直径双头滚刀的设计要点及实际应用效果。
2) roller cutter bits
滚刀钻头
1.
To meet the requirement of constructing rock embedded piles, inserted roller cutters and roller cutter bits were developed.
根据大口径嵌岩桩施工的需要,研制了镶齿滚刀及滚刀钻头,介绍了镶齿滚刀硬质合金齿的选择、布置,镶齿及密封技术,滚刀钻头的结构设计及钻进参数的确定。
3) roller-type cutting head
滚刀钻头
1.
Description is made of the roller-type cutting head, the distribution law of the cutters, as well as the effect of drilling parameters on the drilling efficiency.
介绍了滚刀钻头破岩机理、滚刀的分布规律、以及钻进参数等因素对钻进效果的影响，并通过施工实例对目前滚刀钻头使用中所存在的主要问题进行了分析。
2.
So Benoto Method,reverse circulation drilling with quadruple-wing drag bits,drilling with roller-type cutting head and combined drilling technology was adopted as well as wall protection with mud,which is strictly districted in Hongkong and Macao.
根据工程的具体情况,采用贝诺特工法、反循环四翼刮刀钻头钻进、滚刀钻头钻进等组合钻进工艺,同时采用在港澳地区限制严格的泥浆护壁钻进。
4) hob
[英][hɔb] [美][hɑb]
滚刀,冲头
5) hob with arc end
圆弧头滚刀
6) triple head knurling tool
三头滚花刀
补充资料：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
CAS：38051-10-4
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条