The paper briefly describes the design features of the outer-bur scraping system for hi-frequency weld pipe.
简介了改进的高频焊管外毛刺刮削机构的设计特点。
Briefed in the article are the inner burr formation of and the burring method for the hi-frequency straight welded tube.
简要介绍了高频直缝焊管内毛刺的形成和清除方法。
The inevitability and feasibility of application of the grouping technique to production bf hi-frequency welded tubes are discussed from both theoretic and practical point of views.
从理论和实践方面论证了成组技术在高频直缝焊管生产中应用的必然性、可行性。
Between three subtypes of ADHD, brain wave frequency of HI type was the slowest, of the PI type was the fastest(P<0.01).
三个亚型ADHD患儿中HI型脑电频率最慢，PI型频率最快，三个亚型间两两比较差异有非常显著性（P<0.01）。
Our products are applied to the peripheral devices of producing Hi & low frequency transformers, the main products include automatic winding machine, taping machine, automatic soldering machine , etc.
我们的产品专用于生产高低频变压器的周边设备，主要产品包括自动绕线机，胶布机，自动焊锡机等系列。
The blue valley sci-tech company is a hi-tech enterprise that is specialized in R&D and production of no brushes electrical machinery and the frequency conversion motor-driven control system.
蓝之谷科技是一家专注于无刷电机及变频电机驱动控制系统研发及生产的高新科技企业。
Shenzhen DCTEC Technology Ltd. is a hi-tech enterprise specializing in R&D, manufacturing, and marketing high-frequency switching power supply.
深圳市东辰科技有限公司是专注于DCTEC品牌高频开关电源的研发、生产与销售的高科技企业。
Shenzhen DCTEC Technology Ltd. is a hi-tech enterprise specializing in R&D, manufacturing, and marketing high-frequency switching power supply.
深圳市东辰科技有限公司是专注于DCTEC品牌高频开关电源的研发、生产与销售的高科技企业。
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