A system configuration of helicopter simulation is given and a mathematical model of helicopter hovering is set up as to development helicopter simulating system in Marine search and rescue simulator.

为了研制海上搜救模拟器的直升机模拟系统，给出了直升机模拟的系统结构，建立了直升机的悬停数学模型。

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Objective:To search for bioactive compounds from marine microbes.

目的：从海洋微生物中寻找天然活性物质。

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The marine energy saving have several measures. Marine hybrid-drive is one of potential re- search problem.

船舶节能的措施有多种，船舶混合动力推进系统是其中一个很有潜力的研究课题。

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The Yorkshire and Humber Underwater Search and Marine Unit will operate from the Humberside Police area.

BBC: Yorkshire merged police underwater search unit launches

The body of a sixth Marine also has been recovered, and search teams are working to find the remains of a seventh Marine who was killed in the plane crash.

CNN: Sources: Afghan detainees planned attacks on U.S.

They pulled up in a car shortly after a roadside bomb exploded, killing a Marine and setting off the house-to-house search.

NPR: Some Haditha Cases Seen Weakening