by standard

基本解释

In the synchronous case, the communication between the Event Emitter and the Event Service is done by standard EJB mechanisms.
在同步發送情況下，事件發送者和事件服務之間的通信由標準的 EJB 機制完成。
They feed on caterpillars and moths, and the bats themselves are so muted that they can’t be picked up by standard bat detectors, so they are hard to find.
它們以毛毛蟲和飛蛾爲食，但是它們自己卻十分安靜，一般標準的蝙蝠探測器無法察覺它們，因此它們很難被發現。
Both the normal rodents and those with Alzheimer's were exposed to the electromagnetic field generated by standard mobiles use for two one-hour periods each day for seven to nine months.
研究人員在七至九個月時間裡，每天兩次，每次一小時，讓這些正常的和患老年癡呆症的齧齒動物接觸由標準手機産生的電磁場。

By standard measures, the world has certainly been going through some tough times.
And then I could also do a Gaussian one here, with the mean of and the standard deviation of volatility divided by 2.
然後我在這裡再寫一個高斯分佈的函數，它的浮動值的平均值和,標準偏差值都除了2。
麻省理工公開課 - 計算機科學及編程導論課程節選
Nature supplies the standards, the materials, the models, for all the later arts, the city being by nature, man by nature, nature provides the standard.
自然提供了標準，物質，模型，爲後來産生的藝術，爲城市，爲人類的存在，是自然提供了一切標準。
耶魯公開課 - 政治哲學導論課程節選

Fortunately, the life of the researcher is made easy by standard statistical software packages.
FORBES: Publication Bias (or, Why You Can't Trust Any of the Research You Read)