Scientists have dated sharp-edged flakes of stone found in the fine-grained sediments of a dry riverbed in the Afar region of Ethiopia to between 2.52 and 2.60 million years ago.
科学家们已经确定，在埃塞俄比亚阿法尔地区干燥河床的细颗粒沉积物中发现的具有锋利边缘的石片存在于252万至260万年前。
These colorful, sharp-edged little punks arrive in a series of pre-perforated sheets for you to construct your own, making you a part of the creative process.
这些色彩缤纷、边缘清晰的小朋克是以一系列冲孔薄金属板的形式到你手中的，你可以自己组装，使你自己也参与创作过程的一部分。
The ground was strewn with sharp-edged pebbles.
地上铺满了棱角锋利的石子。
Hugh caught a flash of fire, reflecting off a sharp-edged blade.
修看到火光一闪，映出一把刀子的尖锐刃边。
The bowl rests on a plinth, covered by a sharp-edged rectangular roof.
碗在基座上，上面覆盖棱角分明的长方形屋顶。
This is typically achieved using fixed, circular collimators that produce sharp-edged, highly conformal treatment beams.
实现这种效果具代表性地是采用固定、圆形的准直器，它能够产生边缘锐利、高适形的治疗射束。
Penetration resistance is an important end-use performance of thin flexible materials where a sharp-edged product can destroy the integrity of a barrier wrap.
抗穿刺性能是尖缘产品包装使用的薄柔性材料的一项重要性能，因为产品的尖缘会破坏阻隔包装的完整性。
That they would live and she would die was an impossibility, as foreign as the idea of snow upon the sharp-edged rocks of the Waste.
他们生与她死的可能性同样不存在，这种念头如荒野锋利的岩石能够落住雪一样荒谬可笑。
A sharp tongue is the only edged tool that grows keener with constant use.
尖刻的舌头却是一柄唯一的愈用愈锋利的刀子。
Adrenalin junkies can get their fix by balancing sharp hatchets and double-edged axes over their heads before hurling them at painted wooden bullseyes.
喜欢这种刺激运动的人会先在头顶平衡一下锋利的短柄小斧和双刃斧，瞄准位置，然后再向彩色的木制靶眼投过去。
The application of computer games in primary and secondary education in is a sharp double-edged sword. While there are positive aspects, there are also a large number of problems.
电脑游戏在中小学教育中的应用是一把锋利的双刃剑，有积极的方面，但也存在大量的问题。
He learned the sound of her laugh, edged and sharp, then full and low.
他熟悉了她的笑声，尖锐、锋利，然后是圆润、低沉。
They say she was like a blade herself, as sharp and keen-edged and quick, as if she were made of steel and lightning.
人们说，她就像是一把剑，锋利无比，疾如闪电，似乎她本来就是由钢和闪电铸成的。
Use blunt-edged hooks to keep children safe from sharp edges.
为了使儿童免受到割伤，最好使用钝边的挂钩。
To the angel of the church in Pergamum write: These are the words of him who has the sharp, double-edged sword.
你要写信给别迦摩教会的使者，说，那有两刃利剑的说。
In his right hand he held seven stars, and out of his mouth came a sharp double-edged sword. His face was like the sun shining in all its brilliance.
他右手拿著七星。从他口中出来一把两刃的利剑。面貌如同烈日放光。
In his right hand he held seven stars, and out of his mouth came a sharp double-edged sword. His face was like the sun shining in all its brilliance.
他右手拿著七星。从他口中出来一把两刃的利剑。面貌如同烈日放光。
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