Within the limitation of quantity you are free to do as you choose.

The Air France plane lopped over four hours off the previous best time.

法国航空公司的飞机在原来最短航行时间的基础上又缩减了4个多小时。

This question is subsidiary to the previous one.

这个问题是辅助上一个问题的.

She asked for a printout of the previous year's accounts.

她索要了一份去年账目的打印件.

She began recalling a series of previous incarnations.

她开始回忆起前世的种种情形。

The message they are transmitting to their daughters is very different from that of previous generations.

他们向女儿传输的信息与上几代人截然不同。

Adaptive signal processing ( ASP ) is extensively applied in communication, radar, navigation sonar, and so on.

摘要自适应信号处理广泛应用于通信 、 雷达 、 导航 、 声纳等领域.

A sonar array is a radar towed behind a ship that listens and locates underwater sounds.

声纳阵列雷达拖着船舶侦听和位于水下声音.

For radar and sonar systems, wideband condition has more applications and suitability than narrowband condition.

对于雷达、声纳系统而言, 宽带条件往往比窄带条件具有更广泛的适用性.

The whales need sonar to find food.

而鲸鱼就是靠这种能力来寻找食物的.

In this dissertation, we study a supergain array to improve the detection performance of passive sonar.

本文从提高被动声呐的检测性能出发,提出了超增益阵的设计.

Dolphins navigate by bouncing sonar waves off objects to determine location and distance.

海豚靠强大的声纳系统发出声波来确定物体的位置和距离.

Beamforming is an important technology in sonar signal processing.

波束形成是声纳信号处理中的一个重要组成部分.

Other dolphins use their own sonar, too , but they also rely on vision.

它的耳部由一块厚厚的脂肪层保护着, 可免受外界噪音的干扰.

Cavitation is noisy and easily detected by sonar.

空泡现象是有噪声的并且容易被声纳探测到.

It works in a similar way to a sonar unit on a warship or submarine.

声音从一个形状象双筒电筒样的超声电筒发射出去.

As a detecting device working underwater, the synthesize aperture sonar is fixed in the underwater carrier.

作为水下探测器的一种, 该系统的水下探测部分载体内承装的是合成孔径声纳系统.

In this paper, a new map building method sonar data is presented.

未知环境中移动机器人地图创建是自主移动机器人一项重要的基本功能.

Therefore , Passive SONAR SONARsubmarine . The traditional SONARs are consisted of middle or small scale Integrated circuit.

传统被动声呐系统多半采用中小规模集成电路,体积较大,硬件处理能力低.

We picked up two submarines on sonar.

我们用声呐系统观察到两条潜水艇.

Active SONAR provides signal for enemy when ranging pulse and this is very dangerous for submarine.

被动声纳因隐蔽性好等优点而倍受关注,成为潜艇的主战声纳.