third difference中文什么意思

三阶差分

• third:    n. 1.〔the third〕第三 ...
• difference:    n. 1.差异，差别。 2.不和，争 ...
• third order difference:    三阶差分

例句与用法

1. The third difference is this : a beam of ordinary light diverges ; a laser beam does not
   第三个不同点是：普通光束分离;而镭射光束却不然。