In order to meet the testing requirmets in paddy field, the author proposed a new slippage control mechanism added to the tractors which are in mass production, the author also explicated the new method principles and its advantages, and a testing track-laying chassis has been rebuild according to this new method.

在對(duì)已有的滑轉(zhuǎn)率控制機(jī)構(gòu)分析的基礎(chǔ)上免费高清视频黄色视频频，為滿足水田中試驗(yàn)的需要大学生高潮一级毛片免费，提出在成批生產(chǎn)的拖拉機(jī)上加裝滑轉(zhuǎn)率控制機(jī)構(gòu)的新方案，論述了這種方案的原理欧美xingai在线播放，說(shuō)明了它的優(yōu)點(diǎn)在线看无码黄片。

In the rehabilitation of old railroad line and the construction of local special railways, track-laying is usually done manually due to the limited amount of work.

在舊線改造或新建的地方專用鐵路施工中，由于鋪軌量不大97超级碰碰碰人妻免费，以往大多采用手工作業(yè)方式日本亚洲视频。

Track-laying mobile robot is differential driven, so it is a skid-steering vehicle and its turning radius can equal to zero.

履帶式移動(dòng)機(jī)器人依靠差動(dòng)實(shí)現(xiàn)轉(zhuǎn)向，因而能夠?qū)崿F(xiàn)轉(zhuǎn)向半徑為0综合网色天使。

The first one is Vector Pursuit which is based on Screw Theory. The second one is Replicate Line Method presented by this thesis which is presented according to the skid-steering property of track-laying mobile robot and the constraint of its working environment. Thirdly, use the path tracking method proposed by Kanayama for reference to control the robot moving for the current position to the desired position with the desired velocity, so make the path tracking process more precise.

然后從運(yùn)動(dòng)學(xué)方面，根據(jù)機(jī)器人當(dāng)前位置與目標(biāo)點(diǎn)的位置偏差和角度偏差欧美一级黄色片不卡直看，采用基于螺旋理論的向量追擊法在线看黄免费不卡，以及本文根據(jù)履帶式移動(dòng)機(jī)器人運(yùn)動(dòng)特點(diǎn)和工作環(huán)境特點(diǎn)提出了的軌跡跟蹤方法，折線法，來(lái)確定機(jī)器人的期望運(yùn)動(dòng)；再借鑒Kanayama提出的軌跡跟蹤控制方法，對(duì)機(jī)器人以期望運(yùn)動(dòng)速度從當(dāng)前位置運(yùn)動(dòng)到目標(biāo)點(diǎn)的過(guò)程進(jìn)行控制性生一级录像20分，從而進(jìn)一步精確了跟蹤過(guò)程。

Taking the rapid transit from Tianjin to Binhai New Area for example, this article gives a description of the preliminary design, construction organization and budget estimate making for the track-laying on viaducts, and makes a comparison with the actual field construction to explore the construction organization of slab track of the rail transit system and performs a cost analysis thereof.

以天津市區(qū)至濱海新區(qū)快速軌道交通工程為例，闡述高架橋梁鋪軌初步設(shè)計(jì)施工組織及概算編制国产精品久久久久影院色麻豆，并與實(shí)際施工對(duì)比日韩免费毛片不卡视频，探討城市軌道交通工程無(wú)碴軌道施工組織及費(fèi)用分析美女扒开腿让男生桶免费看视频。

Track-laying was completed on FuXia line at 10:18 on October 18th.

10月18日10時(shí)18分在线黄色网站你懂，福廈鐵路全線鋪通。

China's high-speed railway pre-selection of the three types of ballastless track indoor scale model is the laying of the performance test and the first two structure of a bridge and tunnel test shop and field test.

對(duì)我國(guó)高速鐵路前期選用的三種結(jié)構(gòu)型式無(wú)碴軌道進(jìn)行室內(nèi)實(shí)尺模型鋪設(shè)及各項(xiàng)性能試驗(yàn)免费在线观看黄色网站大全www，對(duì)前兩種結(jié)構(gòu)型式進(jìn)行橋上和隧道內(nèi)試鋪及現(xiàn)場(chǎng)試驗(yàn)。

Had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed.

當(dāng)然牛頓在他的作品中寫(xiě)到了一些理論方面的東西，但他不愿進(jìn)行更加深刻的研究国产毛片爽爽影院无码。

Had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed.

這個(gè)問(wèn)題第一次必須加以回答是在考慮鋪設(shè)從歐洲到美國(guó)的電報(bào)電纜的時(shí)候，而且具有商業(yè)意義三级国产三级精品网站。

Had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed.

可見(jiàn)全篇重要是講海洋學(xué)的研究是如何開(kāi)展起來(lái)的在线日韩网站，所以正確答案是A）日韩视频欧美在线一区。