紫铜垫片 SIZE(尺寸):2-5/8 IN ID X 2-7/8 IN OD X 1/32 IN TH是什么意?

mysql select * from lsdl_user where id in (1,2,3,4,5)中in()最多 英语翻译For a given sample size,the bias in 1β% increases as x i y=1+In(x+2)的反函数是什么,为什么, 英语翻译特别是IN SIZE in size意思.. be different in size 关于in size问题 1/In(x+1)的导数是什么 已知函数f(x)=In^2(1+x) 1.证明不等式：In(x+1)小于等于x^2/x+ My brother takes size 8 in shoes.对划线部分（size 8）提问! different in size和different from size 计算积分∫In(1+x)/(x∧2)dx