Sigma test
[医] 西格马试验, Σ试验(检梅毒的絮凝反应)
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
Would you like me to reschedule you for another time?
要不要我再另外为你安排别的时间？
A thousand friends are few, one enemy is too many.
朋友千人尚觉少，仇敌一人犹嫌多。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。