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1·The water based dye penetrant is too low in sensitivity to inspect the vessels for cryogenic liquid oxygen.

低温液氧容器使用水基型着色探伤剂灵敏度较低，不能满足要求。

2·The basic principles of penetrant inspection, the factors affecting the inspection, the development of a new-type of dye penetrant and its performance are described.

介绍渗透检测的基本原理，分析影响渗透检测灵敏度的因素，着重阐述一种新型着色渗透液的研制情况及其性能指标。

3·Dye-penetrant testing of the disc trunnions and piston rod heads.

对阀盘、耳轴活塞杆头的染料渗透剂测试。

4·The ground area was also checked with dye-penetrant to ensure that no crack tip remained.

打磨区也用着色渗透剂进行了检查，以便确保无裂纹尖端留存。

5·Dye-penetrant and magnetic particle inspection techniques were used on the repaired and other 21 remaining original welds.

曾在修补其余21个原始焊缝上进行了着色渗透和磁粉探伤检查。