Duplex spread blade 双重双面刀齿
spread -blade cutting method 双面切削法 ; 展成法切齿
duplex spread blade method [机] 双重双面法
duplex spread blade cutting method 复合双面切削法
spread blade cutter 螺旋伞齿轮切削刀盘
spread-blade cutter 双面刀盘
Duplex x spread blade 双重双面刀齿
spread blade bevel gear cutter 螺旋斜齿轮切削刀盘
The 300 holes in each blade, most of them thinner than a human hair, are engineered to spread a coat of cool air over the spinning blades so they aren't melted by 3,000f exhaust gases.
每一个涡轮机叶上有300个小孔，这些小孔大多数比人的头发丝还要细，它们会被一层冷却空气所覆盖，以免被3000f的高温所融化。
The 300 holes in each blade, most of them thinner than a human hair, are engineered to spread a coat of cool air over the spinning blades so they aren't melted by 3, 000f exhaust gases.
每一个涡轮机叶上有300个小孔，这些小孔大多数比人的头发丝还要细，它们会被一层冷却空气所覆盖，以免被3000f的高温所融化。
With the wide use of Horizontal-axis wind turbine, the design of blade shape and the research of aerodynamic characteristics have been attracting wide-spread attention.
随着大型水平轴风力机的广泛使用，叶片的外形设计和气动性能研究受到广泛的关注。
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