單車「電梯」輕鬆上斜坡!城市單車規劃最需要!
Sputtering - Wikipedia, the free encyclopedia 踩單車上斜坡非常辛苦,並非人人都可以做得到。如果要落地推車,會削弱了使用單車作為代步工具的本意。挪威有人在 90 年代設計了 Trampe,一條安裝在路邊的單車「電梯」,騎車者只要踩著 Trampe 的腳踏,腳踏會緩緩的將騎車者由山腳帶到山頂。 Trampe 原本安裝在挪威城市 TrIn the case of multiple charged projectile ions a particular form of electronic sputtering can take place that has been termed potential sputtering. [10] [11] In these cases the potential energy stored in multiply charged ions (i.e., the energy necessary ...
全文閱讀