Excellent surface quality 极佳的表面质量
A precise pass-size and welded pipe with excellent surface quality can be get when the deformation way of cube-pass and design calculation with surpass trigonometric equation are used.
采用“立方”孔型变形形式，结合简明的超越三角方程进行设计计算，以得到精确的孔型尺寸及高表面质量的焊管。
The motor shell with the radiating fins has the advantages of excellent radiating effect, good surface quality, convenient processing, and lower manufacturing cost.
本发明之带散热翅片的电机外壳散热效果好，表面质量好，加工方便，制造成本较低。
The Al-free grating surface permits the re-growth of a high-quality cladding layer that yields excellent device performance.
由于采用无铝光栅，保证了二次外延质量，从而得到较好的器件性能。
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