Delta acid
[化] δ酸; 2-萘酸-7-磺酸(染料中间体)
🧩 词语组成解析
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
🗣️ 情景例句
and Philip was opening his first medical office.
而Philip则第一次开诊所。
To sum up, he agrees with us.
总而言之，他赞成我们。
Right from the start there was trouble with the Hubble.
从最开始哈勃望远镜就有问题。