Qualitative directives
[经] 质量指令
🧩 词语组成解析
n. 正式的指示, 官方的指示, 指令( directive的复数形式 )
🗣️ 情景例句
Where do you usually spend your weekends?
你通常在哪度过你的周末？
Who will accompany you to the airport?
谁将陪你去机场？
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。