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A model and its algorithm to search the best route in a vehicle navigation system is expound...

结合遗传算法的特点，建立求解动态最优路径模型及算法。

Finally, tests of following crop row showed that shadow removal method based on illumination invariant image satisfied real-time requirement of system and improved the robustness of extracting navigation parameters under variable daylight illuminants.

最后，通过作物行跟踪试验表明，基于光照无关图的阴影去除方法不仅满足了导航实时性的要求，而且使农业机器人在光照变化的情况下导航参数提取的鲁棒性有了更大的提高。

In late 1970' s, rubidium atomic frequency standards for ship navigation were developed, and in 1990' s a new revised was made.

上世纪七十年代末，研制出舰船导航用铷原子频标，并在九十年代末研制出换代产品。

Objective To assess effects and security of the insertion of sacroiliac screws by the hi-planar navigation robot system.

目的 本研究应用双平面骨科机器人系统进行尸体骨骨盆骶髂关节螺钉置入的实验研究，评估该系统的安全性和有效性。

In the system, a lot of vibration sensors are laid in the differentplaces of the cabin and the field bus monitoring network system is found, which thesystem can real-time monitor the total ship noise. Thus, on the one hand the systemcan predict the sound field characteristic of typical navigation state in order toenhance the navigational reliability, on the other hand for effectively protecting thehealth of the sailorman and passenger, the certain technology that can reduce oreliminate the ship noise are adopted.

系统通过在船舱内不同的位置布置大量振动传感器和建立现场总线监测网络系统，实现对船舶总噪声的实时监测，从而对船舶典型航态的声场特性作出准确的预报，以便提高船舶航行的安全可靠性，同时通过采用某些降低乃至消除噪声技术和措施，有效地保护船员及乘客的身心健康。

In the vision heading navigation,the salient feature point with known relative position to the target is chosen as the reference point.And the pose adjustment quantities of the robot are determined according to the image of the reference point.

该方法利用环境中与目标位置关系已知的显著特征点作为参考点，根据参考点的成像位置确定系统运动的姿态调整量，实现机器人运行方向的导航。

For dealing with deposited mud and sand,reef,projecting rocks and other navigation questions,all of the reefs in channel were blasting demolished before water storage 156 m .

摘 要：为解决涪陵至铜罗峡间的泥沙累积性淤积、礁石碍航、峡谷河段礁石突嘴产生不良流态等通航安全的问题，对航道内的礁石在蓄水位156m 前进行爆破清除。

A sandbar that is an obstruction to navigation .

成为航行的阻碍物的沙洲。不适合

A sandbar that is an obstruction to navigation.

成为航行的阻碍物的沙洲。

The north that building fights space of satellitic navigation system paragraph by 5 dormant orbit is defended

正在建设的北斗卫星导航系统空间段由5颗静止轨道卫

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼