Many groups around the copper wire by a layer of heat-resistant polyester film wrapped insulation.

多组铜丝的周围被一层耐热聚酯薄膜绝缘包裹。

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Two groups of matching relation of the weld speed and the wire feed rate were found in a condition of invariable laser power and focus position.

前者试验获得了一定激光功率和离焦量条件下两组焊接速度和送丝速度的匹配关系，并发现填充焊丝的加入对焊缝咬边现象确有改善；

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And then, we are divided into three groups to take wire-walking trained.

然后，我们分成三组，采取线行走训练。

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Both research groups use wire made of a standard alloy of nickel and iron that is easy to magnetise.

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To hear Phiyega, the police commissioner, describe it, the police weighed all their options and decided to fence in the miners with barbed wire -- to compartmentalize them into more manageable groups.

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While critics complain that America has no human intelligence sources inside the terror groups the single greatest collection of HUMINT sources are confined behind the wire at Camp Delta and surrounding camps.

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