知識貝殼
知識貝殼
所屬欄目：世界英漢雜輯
Derived units are formed by combining base units. Velocity forexample (distance divided by time) has units of metres per second(ms-1 or m/s). Certain units have their own special names andsymbols as shown.導出單位是通過基本單位的組合而形成的。例如速度(距離除以時間)的單位 ......（本文共 714 字 ） [閱讀本文] >>