为什么会认为小孩子的做发型应该要比大人的要花的少？小孩子不会静静地坐着，他们乱动乱踢。这可是一件很耗精力的事。
Why do you think a child's haircut should cost less than yours? Kids don't sit still. Kids kick. It's an intense experience.
铸铁管件由于材质和形状的特殊性，一般采用热镀锌，但耗锌量大，能耗大，成本高。
Hot dip galvanizing is commonly used in plating cast iron pipe due to the particularity of material and shape, resulting in high zinc and energy consumption and high cost.
铸铁管件由于材质和形状的特殊性，一般采用热镀锌，但耗锌量大，能耗大，成本高。
Hot dip galvanizing is commonly used in plating cast iron pipe due to the particularity of material and shape, resulting in high zinc and energy consumption and high cost.
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