The Contractor shall be responsible for the true and proper setting-out of the Works in relation to original points, lines and levels of reference given by the Engineer in writing and for the correctness, subject as above-mentioned, of the position,

The Contractor shall be responsible for the true and proper setting-out of the Works in relation to original points, lines and levels of reference given by the Engineer in writing and for the correctness, subject as above-mentioned, of the position, levels, dimensions and alignment of all parts of the Works.

参考译文：
承包商应负责按工程师书面提交的（书面提交2 分）有关点、线和水平面的原始参数如实准确地（1分。可翻译为精确地）进行工程放线，且如上所述，负责校准工程各部分的方位、水平、尺寸和定线（定线1分）。