Rope case

绳案───Rope case

rope ran was fastened underneath the lantern in a little iron box, the key to which was kept by the lamp-lighter, and the rope itself was protected by a metal case.───绳子的转盘关在灯下面的一只小铁盒里，钥匙由点灯工人保管，绳子在一定的高度内有一根金属管子保护着。

And, in most data-processing routines, sequential access to a rope's characters is what's required, in which case a rope iterator can provide amortized o (1) access speed.───而且，在多数数据处理例程中，都需要对rope字符进行顺序访问，在这种情况下，rope的迭代器能够提供分摊的o(1)访问速度。

the sun's case, magnetic energy forces a flux rope tens of thousands of kilometers upward from the surface.───从太阳方面看，磁能迫使通量绳上升到地表数万米之上。