draft check plate 通风道挡板 ; 通风道档板
draft arm wear plate 牵引臂抗磨板
draft sill tie plate 牵引梁连结板
Draft tube elbow plate 尾水肘管板
The causes to such defects as cracking and sand inclusion in the integral rear draft lug and the body center plate filler are analyzed, and the technology improvement measures are described.
分析了一体式后从板座及上心盘座裂纹、夹砂等缺陷产生的原因，并介绍了工艺改进措施。
The stripe coat must be applied prior to full coat on the erection joints, marker of tanks, water line, draft mark, ship name and port register etc of shell plate.
外壳上的焊缝、舱室标记、水线标记、水尺、船名、港籍名等每一度涂层施工前均要做预涂；
The result shows some cracks appearing on vertical weld connecting web plate of body bolster and draft sill as well as the part between web plate of body bolster and top cover plate.
试验结果表明，无中梁罐车存在枕梁腹板与牵引梁立焊缝裂纹及枕梁腹板与枕梁上盖板之间的裂纹。
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