In this scheme, the tracer can trace at least one user who makes the pirate (called traitor) with black-box method when the pirate is found.

在方案中，当发现盗版的解密盒时，能够以黑盒子的追踪方式至少追踪到一个制造盗版的用户(即叛徒)。

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To achieve this, the random direction search method, box method and the inter-SUMT method are applied, resulting in some improved feasible plans.

选用随机方向搜索法、复合形法和惩罚函数法，取得若干有改进的可行方案。

youdao

In this scheme, the tracer can trace at least one of the users who make the pirate (called traitors) with black-box method when the pirate is found.

在该方案中，当发现盗版的解密盒时，能够以黑盒子的追踪方式至少追踪到一个制造盗版解密盒的用户(称为叛徒)。

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Another method is to place several cloth bags on top of each other in a box.

VOA: special.2009.09.29

Clooney's method has produced a string of box-office disappointments including Michael Clayton and The Good German.

FORBES: Hollywood

Eventually it did get going in the summer but Money Box now knows that by Christmas fewer than 30, 000 had successfully filed their tax return using this method - a small fraction of the number the Revenue was hoping for.

BBC: Money Box - Saturday 30 December 2000