The utility model relates to a square complement core for a well drilling process, which belongs to an appliance of a well drilling device.
本实用新型是一种在钻井过程中使用的方补芯，属钻井设备的器具。
Palpably, it's the first rectangle that occurred to God when he realized he needed another four-sided, right-angled shape to complement his juvenile masterpiece, the square.
显然它就是当上帝意识到他需要另一个四边直角的图形来补足他初期的杰作正方形时想到的第一个矩形。
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