... 距离尺 range arm 距今已有二十年 that was twenty years ago 距离-波幅反应曲线 distance-amplitude response curve ...
基于2个网页-相关网页
距今已有二十年
It has been twenty years since then
以上为机器翻译结果，长、整句建议使用 人工翻译 。
它初建于清朝道光二十年（公元1840年），是进士杨以增的私家藏书楼，距今已有140余年历史。
Originally built in the 20th year of Qing Dynasty (1840 AD), Haiyuan Pavilion was the private library of Scholar Yang Yizeng, with more than 140 years history till now.
youdao
应用推荐
模块上移
模块下移
不移动