Over the years, everything from gas canons, pyrotechnics, lasers, ultrasound, stuffed owls and radio-controlled model aircraft have been tried to scare birds away from runways.
多年来，气体标准、烟火使用、激光、超声波、猫头鹰标本和无线电控制的模型飞机，这一切都尝试着将鸟从跑道上吓跑。
Britain's Met Office, which is responsible for advisories on risks to aircraft from Icelandic ash, predicts the movement of ash clouds with a model built after the Chernobyl disaster.
英国气象局(MetOffice)负责发布冰岛火山灰对飞机构成威胁的气象报告；它使用切尔诺贝利核灾难事故后建成的模型预测火山灰的运动。
This Small Aircraft Transportation System (Sats) would divert pressure away from the "hub-and-spoke" model of air travel.
这种“小型飞机运输系统（Sats）”将可以为中心辐射型（Hub-and-spoke）的空中旅行模式分担压力。
Based on the analysis of the relationship between safety and reliability, a model for aircraft safety analysis is established from the viewpoint of conditional probability.
在分析飞机安全性与可靠性关系的基础上，从条件概率的角度，建立了一种新的飞机安全性分析模型。
From the range of China, dd Airline in the middle level from the Numbers of airplanes, aircraft model frame, number of employees and annual income.
从全国民航的范围来看，DD公司无论在飞机数量、机型结构、员工人数还是年销售收入等方面，均处于中游水平。
From the range of China, dd Airline in the middle level from the Numbers of airplanes, aircraft model frame, number of employees and annual income.
从全国民航的范围来看，DD公司无论在飞机数量、机型结构、员工人数还是年销售收入等方面，均处于中游水平。
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