前导的 meaning in English

pilot

But if the trail of predecessor is long, redundancy can be well hidden .
但是如果前导的联接链很长，那么这种多余就常常隐藏起来。
However , the collation would be wrong when the number of digits changed , so leading zeroes are provided
不过，如果数字的位数发生了变化，整理就会发生错误，所以要给出前导的零。
The append command works similarly , but will insert a line or lines after the current line in the pattern space . it s used as follows : a - insert this line after each line
请注意，设置和导出环境变量没有使用前导的$符号，而显示或在别的地方使用该值时则使用了该符号。
I then thought about common dangerous characters such as " for a directory separator , the lone " . " for " upper directory , " leading dashes , or the empty locale , and confirmed that they wouldn t get through the filter
然后我考虑了常见的危险字符（比如作为目录分隔符的“ / ” ，用于“上级目录”的“ . . ” ，用于前导的破折号，或者空的本地化参数），并确认它们被过滤掉。