Contact us
Choose a category below so we can get back to you as quickly as possible.
相當於loge
就是分數中約分,讓分子和分母沒有公因數 比如4/6的lowest terms就是2/3
垂直波束寬度
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.