Methods: 150 cases of turbine drill -assisted extraction were compared with orthodox chisel in their reaction after surgical time and the situation of complication.
A worker is hammering away on the roof of the KTP Group shoe Factory, who used to produce shoes for Nike and Reebok among many.
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4. 第二步，石材加工，把需求胶接的山体用锤、凿、锯等东西加工出纹路和对比独特的形状来。
The second step, the stone processing, the need to glue the mountain with a hammer, chisel, saw and other things to produce lines and contrast the unique shape.
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5. 便携式手提动力工具。手柄振动的测量。第2部分：凿锤和铆钉锤。
Hand-held portable power tools - Measurement of vibrations at the handle - Part 2: chipping hammers and riveting hammers.
And what I do is, I select a hard stone hammer, in this case a quartzite pebble about the size of a cricket ball, and I elect to hit it in one place - and this is where I start to knap.
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7. 第二步，石材加工，把需要胶接的山体用锤、凿、锯等工具加工出纹理和比较奇特的形状来。
The second step, stone processing, the need to connect the mountain with a hammer and chisel, saw tools such as machining texture and compare peculiar shape.
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8. 这本回忆录就像一本小心翼翼、千锤万凿、经得住选民考研的竞选演讲。
The memoir has the cautious, polished, poll-tested feel of a campaign speech.
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9. 这本回忆录就像一本小心翼翼、千锤万凿、经得住选民考研的竞选演讲。
The memoir has the cautious, polished, poll-tested feel of a campaign speech.
