求翻译：我国与美国税法的有关规定存在以下区别：（1）我国现只有营业亏损抵后的规定，而没有营业亏损抵回的规定；（2）抵补数额和连续抵补年限少。是什么意思？

China and the U.S. tax law the relevant provisions of the following differences: (1) China is now only operating loss offset provisions, and no operating loss back against regulations; (2) offset the amount and continuous offset years of less.

My country and the United States tax laws of the relevant provisions are the following differences: (1) our country is now only operating loss after the loss, and had no business in the back; (2) consecutive offset offset and length.

Below our country and the American tax law related stipulation exists distinguishes: (1) our country presently only then business loss arrives at after the stipulation, but has not done business the stipulation which the loss arrives; (2) makes good the amount and makes good the age limit to be few

China and United States tax law the relevant provisions of the following differences: (1) the provisions are only operating losses after arriving in China, arrived without loss; (2) continuous offset offset amounts and age less.