查询词典 bow drill

On the basis of that,the structure and function of a new Russian drill pipe flaw detector with electricity bow wave are introduced.

概述钻杆柱疲劳裂纹检测的意义和在电涡流传感器原理的基础上，介绍了俄罗斯专家开发的新型电涡流式钻柱无损探伤仪的组成结构，功能。

With his bow drill, the workman bores small cavities for brads of soft copper to be hammered in, binding the pieces.

他低头演练，以避免工人井小brads是软铜进去，约束件。

With his bow drill, the workman bores small cavities for brads of soft copper to be hammered in, binding the pieces.

工匠用弓形钻孔器钻出小洞，将软铜曲头钉敲入以使得碎片结合在一起。

Small holes could be bored with bradawls, but larger ones required drilling with a bow drill, the bow rotating the metal bit through the wood.

小孔可能会厌倦了bradawls，但需要较大的钻头钻井一弓，弓旋转穿过树林的金属位。

Finely crafted items such as needles, combs, awls, figurines, and decorative carvings on weapons are executed with the rotary bow drill.

精雕细琢的物品如针头、梳、awls，佛像，装饰雕刻、武器与旋转弓操演处死。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。