Acoustic reflectivity
[电] 声能反射率
🧩 词语组成解析
acoustic
[ə'ku:stik]
adj. 听觉的;声学的;原声的;音响的;
n. 反射率\\n[化] 反射率
🗣️ 情景例句
I want to thank you in advance.
在此先致谢，请多多关照。
I didn't mean to.
我不是故意的。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。