operation symbol

常见例句

By using symbol operation for this model, this model can give answers while building test papers.
系统结合符号演算系统，在生成试题的同时，能自动给出相应的答案。
By means of a symbol of operation, the new analytical expressions of the frequency equation and the modal function of lateral vibration of a beam with lumped masses were derived.
引入运算符号，导得带任意个集中质量的梁弯曲振动频率方程和振型函数新的解析表达式。
Beijing Declaration of the Forum on China-Africa Co-operation is the symbol of new period on shoes trading between China and Africa, which provides the valuable chance for win-win.
随着第三届中非合作论坛北京峰会的顺利举行，中非鞋业贸易也进入了一个新的历史时期，为谋求共赢发展提供了难得的机遇。

Under these conditions, Haiti can become a symbol of renewed international co-operation and of the emergence of a new ethic of sharing.
UNESCO: MEDIA SERVICES
Congress amused itself by changing French Fries to Freedom ones, and Laura Bush snubbed the opening gala of a show celebrating the 200th anniversary of the Louisiana Purchase, a symbol of ancient Franco-American co-operation.
ECONOMIST: Off the hook: Turkey, Germany, Russia. But not France