有关额外的性能说明，请参见。

For performance related information, see.

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每笔合同中都应该提到的商品的性能说明，数量和単价。

you must state the description of the goods, the quantity and the unit price in each contract.

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纳米镀层的力学性能说明，硬度随着合金中镍含量的增加而升高。

The mechanical properties of nanocrystalline deposits have shown increase of the hardness with increasing ni content in the alloy.

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