const stack = []; // 单调栈：存储「右侧候选更大值」，栈内元素单调递增
An almost kilometre thick layer of clay or cap rock will lock away the CO2, just as it trapped oil and gas for millions of years, Schovsbo explains.
。旺商聊官方下载对此有专业解读
The system collects data on restaurant operations and shares it via “Patty,” a voice that talks to employees through their headsets. If the drink machine is low on Diet Coke, Patty will tell the store’s manager. If a customer uses a QR code to report a messy bathroom, the manager will be alerted.
cash dispenser, 1967's Barclaycash machine. This proto-ATM used punched paper