During each acid pickling operation a sample piece of same material shall be kept inside the inhibited acid solution in the tank to check the quality of cleaning.
在每次酸浸操作中，应该将同种材质的试样放置在加入缓蚀剂的溶液内检查清洁程度。
2
Well, the most important thing is that our company demand the quality be exactly the same as the sample which you'll take from the office on the third floor.
最重要的就是我们公司要求品质要与三楼办公室的样品完全一样。
3
We expect that the quality be exactly the same as the original sample you've provided.