Shield volcanoes formed when magma comes out of the ground in the same spot over and over again.

当岩浆一次又一次地在同一地点从地下涌出时，就形成了盾状火山。

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The direct ground contact protects the Juggernaut from electromagnetic attacks and shield discharges.

直接接触地面可使“主宰者”免受电磁攻击和护盾流失。

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With this shield in place, the noise current generated by the electrostatic voltage source and the coupling capacitance flows through the shield to ground rather than through the signal conductors.

有了这种屏蔽，由静电电压源和耦合电容产生的噪声电流就经过屏蔽流到地，而不再流过信号线。

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"This data is going to be downlinked to the ground and pored over by imagery analysts looking for any signs that the heat shield incurred any damage during the launch,".

VOA: standard.2009.07.16