hold signal

• 保持信号

hold signal的用法和样例：

例句

1. Myelin works the same way that rubber insulation works on a wire, keeping the signal strong by preventing electrical impulses from leaking out.
   它的工作原理就象电线上的橡胶皮一样，防止电脉冲的泄露保持信号有力的传送。