Considering the difficulty of gaining the evidence for the defendant's sales amount of the infringed product, the litigant usually chooses to use other ways to prove.
鉴于获取被告销售侵权产品数量的证据有时具有一定难度，当事人往往会选择其他方式进行证明。
Actually, as long as we can turn difficulty to easy, change a way of thinking, the simple formula also can prove it.
实际上，只要我们能够化繁为简，换个思路，用平面几何的简单公式亦能证明。
Actually, as long as we can turn difficulty to easy, change a way of thinking, the simple formula also can prove it.
实际上，只要我们能够化繁为简，换个思路，用平面几何的简单公式亦能证明。
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