In the actual experiment, there were no leading and trailing pulses.

在实际的试验中不存在主导脉冲与后缘脉冲。

youdao

The rest of the expression is used to see if the value (without leading or trailing blanks) is an empty string.

表达式的其余部分用来检查值(去掉头尾的空格之后)是否是空字符串。

youdao

Strip leading and trailing whitespace from text content.

从文本内容中除去前导和尾随的空白。

youdao

Bersani is currently leading the polls with Berlusconi trailing by 5 to 7 points.

CNN: February 22, 2013 -- Updated 1222 GMT (2022 HKT)

The 1996-97 data indicates that the index is more of a trailing indicator than a leading indicator--consumers get confident after things get good, not before.

FORBES: Stocks Conned By Confidence

"Insiders aren't trailing indicators, they are leading indicators, " says Magoon.

FORBES: Magazine Article