查询词典 underwater

UNDERWATER WORLDS Mineral: Celestite Celestite holds the vibration of underwater worlds in the language of light.

水下世界矿石：天青石天青石持有光之语中水下世界的振动。

It combines the resolution equations of passive time difference of arrival location with actual movement of underwater target, uses the Extended Kalman Filter algorithm, analyses tracking problem of underwater target and the confidence ellipse for every moment.

将被动时差定位的解算方程与水下目标的实际运动相结合，采用扩展卡尔曼滤波算法，分析水下目标的跟踪问题及其每一时刻的置信椭圆。

However, the underwater is more execrable compared with the land or space, and more dangerous for human. So as a replacer underwater robot is being used in practical operations more and more.

然而，水下环境与陆地和空间环境相比更加恶劣，对人类的威胁更大，因此水下机器人作为人的替代者，正在越来越多地在实际水下操作中应用。

The dissertation has upstanding reference value to underwater geomorphological measurement system, for instance reservoir region, lakes, as well as measuring the flotage and underwater precipitation.

本论文对于水库、湖泊等水下地形地貌测量具有良好的参考价值，也可用于海洋探测及对水中漂浮物或水下沉淀物的测量。

A "frogman" unit of the PLA showed up at the Olympic Aquatic Center in Shunyi of Beijing yesterday to make underwater security checks on the water areas of about 610,000 square meters part by part for the Olympic Games as a "warm up" of the full-swing unfolding of underwater security during the Beijing Olympic Games next year.

本报北京7月25日电记者马越舟报道：我军一支"蛙人"部队今天出现在北京顺义奥林匹克水上中心，他们将陆续展开对奥运比赛区约61万平方米的水域进行水下安检，为明年北京奥运会水下安保的全面展开"热身"。

20X50y on :50, odds 15m kick underwater, then swim through turn and entire second 25 under on the way back; evens 25 kick under surface, one stroke away from wall turn and hold 15m kick underwater off turn.

前25码，出发时做一个水下15米小幅度蝶泳腿的滑行，然后游完剩下的十米，转身后一口气踢水下25码；再完成25米的回程匀速蝶泳腿后，在距壁一划远的地方开始转身，然后接一次水下15码的小幅度蝶泳腿滑行。

To increase average throughput and decrease end-to-end delay of underwater acoustic networks,the original MACAW protocol is improved according to the low quality and high delay characteristics of underwater acoustic channel.

为提高水声通信网络吞吐量并降低端对端时延，针对水声信道低质量和高延迟的特点，对MACAW协议作出了改进。

Structural matter drops to hit water with fixed rate phut from certain height, inchoate and main the structure that attacks water process in the light of phut is answered begin research, and press mutation of field of force and Xing Bo to wait to study however to entering the underwater after water less, and add with each passing day as large bridge and marine project much, the construction in these projects and the phenomenon that phut of large construction content also appeared to hit water in use process, like Guangdong 9 rivers big bridge is bumped to break down after collapsing, large area bridge floor falls into surface to wait, the meeting such as mutation of field of pressure of the underwater after this kind of phut hits water and Xing Bo is right all round structural products gives birth to certain influence, evaluate this kind of influence to have real project sense to construction and design.

结构物从一定高度落下以一定速度砰击水面，早期主要针对砰击入水过程的结构响应开展探究，而对入水后水下压力场突变和兴波等却探究较少，而随着大型桥梁和海洋工程日渐增多，在这些工程的施工和使用过程中也出现了大型结构物砰击入水的现象，如广东九江大桥被撞垮塌后大面积桥面落入水面等，这种砰击入水后水下压力场突变和兴波等会对四周结构物产生一定影响，评价这种影响对施工和设计具有现实的工程意义。

An underwater optical system of big field and relative aperture is designed according to the characters of underwater low light level imaging.

针对系统的微光成像特点，设计了大视场、大相对孔径的光学系统，增加了进入成像器件的光能量，提高了成像质量。

Long Range Ultra Short Base Line Position System is an underwater acoustic position system, which realize position, track and data communication to five underwater cooperative targets. USBL woks at responsion mode.

长程超短基线定位系统是利用水声定位技术实现对多个水下合作目标进行定位、跟踪和数据传输，系统工作于应答工作方式。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？