查询词典 helicopter

In this paper, the statistical characteristics of one plane and one helicopter's RCS dynamic measurement data are studied by using the χ^2 distributing, log-normal distribution and Rayleigh distributing model, along with the Kolmogorov fit test to goodness, the fitting results in some notableness level are acquired by using the three models for different aspect angles for two targets, and the degree of freedom distribution of χ^2 model in all aspect angles is obtained for two targets' RCS data.

文中以某歼击机和直升机为对象，应用χ^2分布、对数正态分布和瑞利分布模型，以及Kolmogorov拟合优度检验方法，研究其RCS动态测量数据的统计分布特征，得到了在一定显著性水平下，两种目标在不同视向角下对三种模型的拟合效果，同时得到应用χ^2分布拟合时模型半自由度随视向角的分布情况。

The helicopter circled about the flooded area, looking for a proper landing field.

直升飞机在洪水地区上空盘旋，想找一处适合降落的地方。

The helicopter circled round the flooded area looking for a proper landing field.

直升飞机在洪水灾区上空盘旋，想找一处合适的地方降落。

After the helicopter ride, we went to the northern part of the island and visited this huge lava cave.

直升机之旅完后，我们到岛屿北部地区参观这个巨大的熔岩洞穴。

They are no laze known as helicopter studetns .

他们被熟知为："直升机父母"。

KCAL-TV showed helicopter footage of a hearse backing up to the Hall of Liberty — a circular building at the cemetery that contains a 1,200 seat auditorium — to deliver a casket.

KCAL电视台的直升机画面显示，运送棺材的灵车在自由堂——一个能容纳1200人的圆形建筑——后后面停靠着。

Within the tower, there will be a laboratory, living accommodation and a helicopter landing station.

钢塔内有实验室，生活设施和直升飞机着陆站。

We use the targeting pod to lock onto the rescue helicopter and to keep track of it.

我们用这个吊舱锁定救援直升机进行连续跟踪。

Federal Aviation Administration records show the helicopter departed from Long Beach and was scheduled to return to that city.

联邦航空管理局纪录显示直升机从长滩起飞的，并预定回到那个城市的时间。

Under the contract, hundreds of individual upgrades were performed on the trainers to ensure concurrency with the Apache Longbow helicopter.

根据合同，训练器进行了数百处独立的升级，以确保和真实的"长弓阿帕奇"直升机保持一致。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。