L为拉格朗日

你能解释一下这个公式吗“问我的工程师同事我们在日内瓦的欧洲核研究组织(CERN)....

作者:焦藕

写于:2017-07-08 09:07:12

Your Cart
Pizza Chicked BBQ 26”, deep-pan, thin-crust $9.82
Beef Burger Large (500g) $9.82
Extra Burger Small (200g) $0.00
Weekend 20% OFF -$8.22
Order total:
$21.02
Devliery:
$3.99

Total:
$24.21
Go to checkout