Half-rotating blade wheel vertical axis wind turbine is a high efficiency vertical axis wind turbine which utilizes half-rotating mechanism to make up blade wheels.

半转叶轮立轴风力机是利用半转机构构成叶轮一种高效立轴风力机。

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Mothers take their daughters at about age 10 to cutters like Maryan Hirsi Ibrahim, a middle-aged Somali woman who says she wields her razor blade on up to a dozen girls a day.

玛丽安·赫尔西·易卜拉欣就是这样一位割礼师。 这名索马里的中年妇女说，她每天都要对几十个女孩子动刀。

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The hard bone has dulled up the knife blade.

这硬骨头把刀刃弄钝了。

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With Bravo opening up his blade with two huge sixes, Graeme Swann was unlucky not to have him stumped in his first over but the West Indian's fortune quickly ran out.

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The clip shows a woman using make-up and a razor blade to make it appear that she has cut one of her wrists.

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Their best known use has been in a reconstruction of temperatures over the past millennium published in Nature in 1998 and widely known as the hockey stick, because it was mostly flat but had a blade sticking up at the 20th-century end.

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