The utility model relates to a pop-top seal device, which provides possibility for the quadratic use of the pop-top tin.
一种易拉罐的密封装置，它为易拉罐的二次利用提供了可能。
Thus, the quadratic indirect utility function is less attractive because the uncompensated demand functions are non-linear in the parameters.
因此，二次间接效用函数是那么有吸引力，因为无偿需求函数非直线在参数。
The utility model discloses a timing quantitative control device for the new mixing process of the quadratic charging of the concrete.
本实用新型是一种用于混凝土二次投料搅拌新工艺的计时定量控制装置。
The utility model discloses a timing quantitative control device for the new mixing process of the quadratic charging of the concrete.
本实用新型是一种用于混凝土二次投料搅拌新工艺的计时定量控制装置。
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