正如每个整数都可用一些质数的积表示，任一对象的对称都可由所谓简单群的基本构件集合构造出来。

Much as every integer can be broken down into a product of prime Numbers, the symmetries of any object can be constructed from a collection of basic building blocks known as simple groups.

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对于简单的口模形状，可以在线运行时进行积料清除。

Simple die shapes allow for cleaning while the line is running.

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同时与简单的标量积协议的性能相比较，协议4.1的性能是在合理的范围之内。

And comparing with the performance of simple Scalar Product Protocol without privacy preserving, the performance of Protocol 4.1 is acceptable.

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