求翻译：因为即使线圈的供电电流只有0.48安培，1米长Φ273 ×10和一米长Φ377×7的钢管被腐蚀2毫米产生的磁异常垂直分量减小将分别大于512 nT和727 nT。是什么意思？

Because even if the coil power supply current of only 0.48 amps, 1 meter long Φ273 × 10 and a meter long Φ377 × 7 steel pipe corrosion 2 mm have reduced the vertical component of the magnetic anomaly is greater than 512 nT, respectively, and 727 nT.

Because, even if the size of the coil supply current is only 0.48 amps, 1 m long Φ 273 x 10 and a 377 meter long Φ corroded pipes of 2 x 7 mm of magnetic anomalies will reduce vertical weight greater than 512 nT and 727 nT respectively.

Even if because the coil power supply electric current only then 0.48 ampere, 1 meter long φ273 ×10 and a meter long φ377×7 steel pipe is corroded the magnetism exceptionally vertical component which 2 millimeters produce to reduce separately is bigger than 512 nT and 727 nT.

Because even if the power supply of the coil currents only 0.48 amps, Phi Phi 273x10 and a 1-meter-meter steel pipe corrosion 377x7 2 mm magnetic anomalies of vertical component decrease would be greater than 512 727 nT and nT respectively.