This method is of some reference value for other low flow velocity system with tube of small diameter.
该法对其它小管径低流速系统有一定的参考价值。
The paper discusses the design program of the production process for large diameter impregnated diamond bits, which offers a reference for people in this field.
本文详细介绍了生产大口径孕镶金刚石钻头的工艺设计方案，值得同业借鉴。
The reference standard, of convenient length, shall be prepared from a length of bar or tube of the same nominal outside diameter, material and heat-treatment as the material examined.
对比试块应从与待检材料有相同的公称外径、材质和热处理状态的棒或管上制取。
If both outside and inside diameter reference notches are used, the optimum Angle shall be used which will indicate both notches as close to equal size as possible.
若外径和内径的参考槽同时被采用，应使用最佳的角度，使两个槽尽可能地接近相同的大小。
If both outside and inside diameter reference notches are used, the optimum Angle shall be used which will indicate both notches as close to equal size as possible.
若外径和内径的参考槽同时被采用，应使用最佳的角度，使两个槽尽可能地接近相同的大小。
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