冰箱有什么 vs eAbacus

你是否常常遇到这些情况？ • 冰箱塞满却不知道里面有什么 • 某些食材放到过期都没发现 • 晚上想做饭却不知道能做什么 • 采购回来才发现 原来家里已经有了 冰箱有什么就是为这些日常困扰设计的工具。 它能帮你清晰管理冰箱存货，提醒哪些快过期，并根据你现有的食材告诉你 现在就能做哪些菜。

eAbacus is a modern digital abacus for iPhone, iPad, and Mac. Feel natural bead motion under your fingertips—great for mental-math practice, mnemonic lessons, and classroom demos. REAL DIALING • Tap, drag, and multi-touch multiple rods at once • Optional click sound and haptics • Live reading above the board, plus place-value labels on the beam • Auto or manual rod count, with a clear units marker TEACHING MODE • Addition, subtraction, multiplication, and division mnemonics • Step-by-step bead highlights—practice or watch a demo • Clear the board to return to a verse’s starting state • Ideal for self-study, parents, and teachers EXAM MODE • Timed problems with selectable operations and difficulty • Dial the answer on the board, then submit • Closed-book option hides the reading and place labels—perfect for quizzes HISTORY & SHARE • Saves from clears, finished exams, and manual snapshots • Restore any board state, or screenshot and share MAC PODIUM MIRRORING • Dial on iPhone or iPad; a Mac on the same LAN mirrors the board live • Giant reading, place labels, and teaching steps for projection • Built for classrooms, tutoring, and live demos Whether you’re learning abacus basics, practicing mental arithmetic, or teaching mnemonics on a big screen—eAbacus makes the classic abacus ready for today’s devices.