The pinch-effect will occur in plasma column because magnetic field pressure outside is bigger than thermal pressure inside of the plasma column carrying electric current.
载电流等离子体柱由于外磁场压强大于其内部热压强，等离子体柱发生箍缩效应。
Environmental effect of city underlying cohesive soil can be summed up stress field effect, groundwater chemistry effect, thermal effect, electric effect, etc.
城市环境下粘性土环境效应通常可归纳为应力场效应、地下水水化学效应、热效应、电效应等方面。
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