This is a special tip test method, for different grades of steel can be distinguished.
这是一种鼻尖专用的测试法，对于不同标号钢材均可区分。
Tip: you can make a personality test, this can help you to better understand your personality type.
提示：你可以做一个性格测试，这样能帮你更好地了解自己的性格类型。
Thereis a very simple test to determine if a spray tip is worn.
这有一个很简单的试验来检查喷嘴是否磨损。
Thereis a very simple test to determine if a spray tip is worn.
这有一个很简单的试验来检查喷嘴是否磨损。
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