dual purpose testing
... 无法表示意见 Disclaimer of opinion 双重目的测试 Dual-purpose test 强调事项段 Emphasis of matter paragraph ...
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双重目的的测试 [审计] dual-purpose testing
主题：焊工测试电弧和TIG机器似乎是双重目的，所以他们应该会没事依照片上的，只不过是一个米格机，我想知道有多少架米格的，他们有。
Subject: welder testing The ARC and TIG machines appear to be dual purpose so they should be OK 1. however, the photo's only showed one MIG machine and I would like to know how many MIG's they have.
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