Selection of the primary and secondary airflow rate, the guide Angle of the blade, the primary air ratio as well as the material for manufacture of the burner nozzle are given.

然后介绍了一、二次风速，旋流叶片的导角，一次空气比例系数等参数的选择及制造烧嘴的材料。

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This is the best working Angle to prepare the notch, drill the tibial tunnel, and initiate the femoral guide pin before fully flexing the knee.

这是准备髁间切迹、建立胫骨隧道、在完全屈膝前放置股骨导针的最佳工作角度。

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And basing on the three-axis motorized turnable, we build a measurement system for measuring the view angle of laser-guide device.

并以三轴电控转台为基础，用以搭建一套测量导引头上激光视场角的测量系统。

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Heavy make-up or a mask will also work, as will tilting your head at a 15-degree angle, which fools the software into thinking you do not have a face, according to an online guide produced by hacktivist group Anonymous.

BBC: 'Privacy visor blocks facial recognition software'