题目内容
工序尺寸的公差确定一般按“入体原则”来标注,处于外表面其最大极限尺
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工序余量等于上道工序尺寸与本道公差尺寸之差的绝对值。
In many English-language cultures, asking an adult’s age directly - particularly a woman’s age - is polite.
The good way to ask someone about his or her age is to say “Do you mind me asking how old you are? "
When you answer someone about your age, the answer to this can be straight: "I'm 25 years old." or just "I'm 25."
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