This routine takes in two arguments, the second being the absolute value of time by which, if the lock could not be acquired, the routine returns with a non-zero status.

这个例程有两个参数，第二个参数是绝对时间值。如果在到达这个时间时还无法获得锁，例程会返回且状态码非零。

youdao

Use the && control operator to combine two commands so that the second is run only if the first command returns a zero exit status.

使用 && 控制操作符来组合两个命令，以便仅当 第一个命令返回零退出状态时才运行第二个命令。

youdao

The chances of a Greek-style crisis in America are low, given the dollar's reserve-currency status, but not zero.

在美国，考虑到美元的储备货币地位，希腊式危机的可能性很低，但不为零。

youdao

Several previous efforts to achieve net zero energy status have fallen short of doing so.

FORBES: Walgreens Wagers on Net-Zero Energy

On the green front, all steel-framed Connect:Homes are designed to attain LEED Silver certification out the door, with Gold and Platinum certification and net-zero energy status a possibility depending on additional bells and whistles added at the installation site.

FORBES: By Land or by Sea: New Prefab Firm Offers Game-Changing Delivery System

While GM should be applauded for the progress it has made towards achieving zero-landfill status at more than half of its facilities, the employees should also be recognized for their efforts.

FORBES: 52% of GM facilities are landfill-free