The former's major design basis is the parameter of soil resistivity along the pipeline, the crossings of high-voltage DC transmission line with the pipeline etc.
前者的设计依据是沿线土壤的电阻率及输电线路与管道交叉等参数，后者主要是加压站内深井阳极地床。
The former's major design basis is the parameter of soil resistivity along the pipeline, the crossings of high-voltage DC transmission line with the pipeline etc.
前者的设计依据是沿线土壤的电阻率及输电线路与管道交叉等参数，后者主要是加压站内深井阳极地床。
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