船体材料为玻璃钢的船舶，给电气设计带来了不少难题。
The use of GRP material for the ship hull brought about a lot of questions to the design of electric systems of the ship.
船舯部分船体的构件尺度、结构和材料如舯剖面图所示。
The scantling, construction and materials of hull within a range of midship part to be as shown on the midship Section.
主船体结构用钢的材料须满足船级社要求，并且无裂纹、迭片结构、表面缺陷和其他的缺陷。
Structural steel material of main hull structure to be of the quality as required by the Classification Society and shall be free of cracks, lamination, surface defects and other defects.
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