in a vacuum

基本解释

Designs cannot be conceived in a vacuum, but I like to add, Design cannot be executed without a strong process.
设计不能在真空中诞生，而我想加上一句，设计的执行中不能没有一个牢靠的流程。
Programs never really work in a vacuum -- a program that is secure in one environment may be insecure in another.
程序实际上不会在真空中工作 - 在某个环境中是安全的程序可能在另一个环境中就不安全了。
And, while I hesitate to give advice at the end of the piece about how advice should not be in a vacuum: You usually get in life what you expect to get. So expect good advice.
在最后一段，我犹豫是否给出关于建议不能在真空里得到的建议，生命里你会得到你期待得到的，所以期待好的建议和美好的吻，然后他们就会到来。

The politicians internal divisions have led to fears that a political vacuum could give Sunni militants a chance to revive the sectarian violence that roiled the nation in 2006 and 2007.
This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.
海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。
麻省理工公开课 - 固态化学导论课程节选
In addition to that, we have that epsilon nought value, remember that's the permittivity constant in a vacuum, and basically that is what we use as a conversion factor to get from units. We don't want namely coulombs to units, we want that will allow us to cancel out in this equation.
这是电子的电荷，此外，我们有epsilon零，记住这是真空的介电常数，这是我们用来转换单位的转换常数,我们不想用库伦单位，我们希望这个可以在方程中约去它。
麻省理工公开课 - 化学原理课程节选

Just like the filter in a vacuum cleaner, however, the trap must be cleaned periodically.
FORBES: Clearing the Air