It needs medium altitude high endurance UAVs to fly over the Mediterranean Sea to control migration from Africa to Europe.

它需要中高，高耐用性无人机飞越地中海，以控制从非洲到欧洲的迁移。

youdao

A compact version will be sold for UAVs and helicopters, and a larger model for medium-altitude, long-endurance drones, ground surveillance and maritime patrol aircraft, Chaltiel said.

紧凑版本将被出售给无人机和直升机，较大版本将被出售给中高空，长航无人机，地面监视和海上巡逻机等。

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The aircraft has an unpressurised cabin and four underpowered turboprop engines, making it only suitable for low- to medium-altitude flight.

飞机采用非气密舱和四台动力不足的涡轮螺旋桨发动机，使它仅仅适用于低-中空飞行。

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It was, she decided, close to ideal, owing to its medium altitude, gentle slopes and unself-conscious charm.

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"In addition, China is developing a variety of medium- and high-altitude long-endurance unmanned vehicles, which when deployed, will expand the PLA Air Force's 'options for long-range reconnaissance and strike, ' " it said, citing an earlier Pentagon report.

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Urge Taiwan to invest in a series of unmanned aircraft for several purposes, to include high-altitude surveillance and communication nodes, and medium range precision attack.

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