fiber单模态标准型紧包单心式光缆: fiber optic cable single mode standard tightly buffered single
阻: 动词(阻挡; 阻碍) block; hinder; impede; obstruct 短语和例子劝阻 dissuade sb. from; advise sb. not to; 拦阻 block; hold back; 阻滞 impede; hinder; obstruct; 风雨无阻 stopped by neither wind nor rain
