投标有效期 meaning in English

validity of bids

Extension of validity of bid shall normally not be requested
一般来说不应要求延长投标有效期限。
We agree to abide by this bid within the period of bid validity
我方同意在投标有效期内受本标的约束。
Bidder shall have the right to refuse to grant such an extension of validity of bid without forfeit their bid bond
投标人有权拒绝延长投标有效期限并不会因此而失掉其投标保证金。
Those who is willing to extend the validity of their bid shall be neither required nor permit to modify their bid
对同意延长其投标有效期限的投标人，既不要求也不允许他们修改其投标。
In exceptional circumstances , prior to the expiry of original tender validity period , the company may demand the tenders for a specified extension of the period of validity
在特殊情况下，公司可以在原定的投标有效期之前，向投标人提出有效期延长到规定时间的要求。