instruction to bidder meaning in English

投标人须知

All bids must be accompanied by a bid security of two per cent ( 2 % ) of total bid price or stated fixed amount and must be delivered in accordance with the instructions to bidders on or before ( hours ) on ( date ) , and will be publicly opened immediately thereafter
所有的投标者都需缴纳总投标价的百分之二( 2 )或一定金额的保证金，并按投标需知于开标前交清，然后立即公开开标。