Hai cercato la traduzione di manhours da Inglese a Cinese semplificato

the supplemental agreement provided for additional manhours to be invoiced at the single rate of usd 40 per hour if the agreed ceiling of 440,000 manhours was exceeded.
补充协议规定，如果超过商定的440,000人工时数，额外的人工时数将按每小时40美元的单一比率开具发票。

the ethylene contract was amended by a supplemental agreement dated 1 september 1988 pursuant to which the parties agreed to place a "ceiling " on the number of engineering and procurement manhours that were to be billed at the rates specified in exhibit iv to the ethylene contract.
491. 乙烯合同经1988年9月1日的一项补充协议修订，根据该协议，双方商定，对将按乙烯合同exhibit iv具体规定的比率记帐的工程和采购人工时数规定一个 "上限 "。

it was amended by supplemental agreements dated 1 september 1988 (to place a "ceiling " on the number of manhours that were to be billed at the rates specified in exhibit iv to the ethylene contract) and 31 july 1989 (to include provisions for the procurement and delivery of equipment and materials by abb lummus).
该合同经1988年9月1日的补充协议(就乙烯合同第四部分具体规定的速率记算的人工时数规定一个 "上限 ")和1989年7月31日的补充协定(列入有关abb lummus采购和交付设备和材料的规定)修订。