in force

基本解释

The company reported total cards in force declined by 4 percent year over year.
该公司表示，有效的信用卡总量与去年同期相比下降了4%。
I wholly disagree with the argument of the Government that the First Amendment left the common law as to seditious libel in force.
我完全不同意政府提出的那种称《第一条修正案》使有关煽动诽谤罪的普通法继续有效的论点。
The new rules, however, in force until after next year's Beijing Olympics, allow foreign reporters to go more or less where they please.
不过，这项在明年北京奥运会结束前都将有效的新规定，几乎允许外国记者到任何他们想去的地方进行采访。

But the naval blockade remains in force to prevent weapons smuggling to the ruling Palestinian militant group Hamas.
It won't come fully in force in the U.S. Until 2009; it's already starting to have its impact.
直到2009年该协议才会在美国完全生效,但它已经开始发挥影响力了
耶鲁公开课 - 金融市场课程节选
Then we may, from this equation, say a certain force is acting in a given situation by multiplying the m times the a.
然后根据这个方程,我们就能说,得到给定条件下的作用力,它等于 m 和 a 的乘积
耶鲁公开课 - 基础物理课程节选

The army has moved in force into several other restive cities, such as Banias.
ECONOMIST: As the turmoil persists, more Syrians are leaving or hiding