Pooled standard deviation
[化] 合并标准差; 合并标准偏差
🧩 词语组成解析
n. 标准,规格;旗,军旗;度量衡标准;直立支柱;
adj. 标准的,合格的;普遍的,一般的;公认为优秀的;
n. 背离,偏离;离经叛道的行为;[航]偏航;[数]绝对偏差;
de偏离+vi道路+ation表名词 → 背离
🗣️ 情景例句
I have the key, but it doesn't work.
我有钥匙, 但是开不开箱子。
How long have you had this pain?
疼痛多久了?
Well, I'm afraid we have to go now.
哦,恐怕我们现在得走了。
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