As quietly as I could I rummaged in the dark for my coat and pulled out my Swiss Army penknife. Its blunt two-inch blade felt about as lethal as an iced-lolly stick.
在黑暗中，我尽量悄无声息地从上衣口袋里拿出了瑞士军刀，两英寸的钝刀锋像一根冰棍那样难以致人于死地。
And a moist blade kept in the shower, harbouring old hair and dead skin, can lead to ingrown hairs and irritation when shaving because the blade becomes blunt.
并且放在浴室的潮湿刀片上藏匿着旧头发和死皮，使用剃刀的时候会导致毛发内生，引发刺激性反应，因为刀片变钝了。
The knife blade angle is small, when cutting labor. The axe blade angle is larger. Used to cut bones and other objects, not easy to blunt. The two blade with a knife, a double-edged knife"."
现有菜刀的刀刃角度较小，切菜时省力。斧头的刀刃角度较大。用来砍骨头等物时，不容易钝。
Film cooling effectiveness of hole rows on leading edge of turbine blade has been studied experimentally. The model is a blunt body with a half cylinder leading edge with two flat side walls.
采用放大的半圆柱状表面模拟涡轮叶片前缘的形状，对叶片前缘单排及两排圆柱形孔的气膜冷却效率进行了测量。
Film cooling effectiveness of hole rows on leading edge of turbine blade has been studied experimentally. The model is a blunt body with a half cylinder leading edge with two flat side walls.
采用放大的半圆柱状表面模拟涡轮叶片前缘的形状，对叶片前缘单排及两排圆柱形孔的气膜冷却效率进行了测量。
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