Major installation
[经] 主要设备, 主要装置
🧩 词语组成解析
major
['medʒɚ]
adj. 主要的;重要的;大调的;主修的（课程）;
n. 主修科目;大调;陆军少校;成年的;
vi. <美>主修，专攻;[美国英语][教育学]主修(in);专攻;
maj大+or...的 → 较大的；主要的
installation
['ɪnstə'leʃən]
n. 安装;装置;永久性军事基地;就职;
in 向内，进入 + stall放 + ation名词后缀 → install安装+ation名词后缀 → 安装；装置；设施
🗣️ 情景例句
What's wrong with him?
他怎么啦？
In the United States ,there are many factories for making cloth.
在美国，有许多造布的工厂 。
Two of his assistants had been working busily since eight o'clock and had only just finished.
他手下两名店员从早上8点就开始忙碌，这时刚刚布置完毕。