Delivery of the Navy vessels is scheduled in the second half of 2012 and the contract contains an option for two additional vessels, as well as technology transfer to an UAE shipyard.

该两艘海军船只预定在2012年下半年交付，该合同还包含对两艘额外船只的选择权，以及技术转移到阿联酋船厂。

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An option is a derivative contract that gives the purchaser the right, but not the obligation, to buy or sell an asset at a certain price.

期权是一种只给买方带来权利，而不需买方承担义务，使其可在未来以某一确定价格买卖资产的衍生品。

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The contract includes lifetime maintenance support and an option for the acquisition of up to eight additional P-81 aircraft, the official said.

该官员称，这份合同还包括全寿命维护支撑和另外8架P - 81飞机的附加选项。

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Quins will not be taking up the option to extend his contract beyond May 2005.

BBC: SPORT | Rugby Union | English | Injury forces Cronje out of Quins

These give the owner of the option the right to buy the futures contract within a certain time frame at a preset price.

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The great thing about being able to fire a person or a contractor, or any kind of counterparty is that the option to terminate a contract brings accountability.

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