During this three-year modification phase, Harris will oversee the production of field change kits that will be used to retrofit ships and provide radio terminal sets for the LAMPS helicopters.

在为期三年的修正阶段中，哈里斯公司将利用其战场转换工具对舰艇进行改装，并为LAMPS直升机提供无线电终端设备。

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The phase-field method is applied to simulate dendritic growth in the three-dimensional space.

采用相场方法模拟纯物质三维枝晶生长。

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Through the whole cycle numerical simulation to three phases current in the opening course, the magnetic field influences at different phase angles of three phases current are clearly obtained.

通过对真空断路器在分断过程中三相电流在整个变量周期内的数值模拟，得到了三相电流在不同相位角时对相间磁场的影响。

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Although they have not been found to cause any harm, the cables on conventional pylons, which transmit a three-phase alternating current, generate a strong electric field and a continuous buzz of low-frequency radio waves.

ECONOMIST: Monitor