to a reasonable extent meaning in English

在合理的范围内

It is proved that the linting problem of zero twist towel can be imroved and controlled to a reasonable extent
无捻毛巾制品的毛羽问题得到改善，并控制在一个较为合理的范围内。
Article 87 if the freight , contribution in general average , demurrage to be paid to the carrier and other necessary charges paid by the carrier on behalf of the owner of the goods as well as other charges to be paid to the carrier have not been paid in full , nor has appropriate security been given , the carrier may have a lien , to a reasonable extent , on the goods
第八十七条应当向承运人支付的运费、共同海损分摊、滞期费和承运人为货物垫付的必要费用以及应当向承运人支付的其他费用没有付清，又没有提供当担保的，承运人可以在合理的限度内留置其货物。