求翻译：除属于强制性法律法规范畴所规定的责任限制外，如果卖方无法履行或满足部分或全部合同义务，则买方对卖方的索赔不应超过未履行部分合同金额的20%。是什么意思？

In addition to belong to the scope of mandatory laws and regulations under the Limitation of Liability, if the seller is unable to perform or satisfy some or all of the contractual obligations, the buyer should not exceed the seller's claim fails to perform 20% of the portion of the contract amount.

In addition to mandatory laws and rules and regulations set forth by the context of the limitations of liability, if the seller cannot fulfill or satisfy some or all obligations under the contract, the buyer of the seller's claim would not be part of the contract is not fulfilled more than 20 percen

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In addition to compulsory legal regulations outside the limitations of liability provided for in category, if the seller does not fulfil or meet some or all of the contractual obligations, the buyer on the seller's claim should not be more than 20% of the unfulfilled part of the contract amount.

Besides belongs to the responsibility limit which the compulsory legal laws and regulations category stipulated, if the seller is unable to fulfill either to satisfy partial or the complete contract duty, then the buyer should not surpass to seller's claim has not fulfilled the partial contract amou