Principles of making precise instructions for ships

This is generally considered according to specific projects. Comprehensive consideration of project characteristics and construction policies. It generally includes the precision control requirements of each stage. The emphases and difficulties of control in each stage; Sectional shrinkage, allowance, secondary shrinkage, cutting allowance before slideway installation, and adding and releasing slideway cutting allowance. Deformation during sectional placement, handling and hoisting. The determination of sectional detection line is convenient for loading and assembly of wharf. Bulk carriers and tankers also have CM point accuracy control requirements.

Precision control is profound, and I can't say a word or two clearly. Mainly precision shipbuilding, so that the accuracy of each stage can be controlled.