Real-time and effective automation control system should be developed so that half-track air-cushion vehicle can be adaptable to complex soft terrain, which exerts fully the advantage of driving ability on the soft ground.

為了使半履帶式氣墊車能更好地適應于復雜的松軟地面條件，充分發(fā)揮在軟地面上行走的優(yōu)越性色欲美女啪啪视频，應研制有效的自動控制系統(tǒng)進行實時地控制。

He had to lie on the ground and raise his right and left legs alternately.

他必須交替地躺在地面上而且升起他的左右方腿。

Be careful when you walk in this field; there are lots of rocks cropping up.

你在這塊地行走時要小心人人人人人人人人人干干干干干干干干干我，地面上有許多露出來的石頭。

Be careful when you walk in this field; there are lots of rocks cropping out.

你在這塊地行走時要小心中文字幕无码永久无线无码，地面上有許多露出來的石頭射射射老司机插插插。

Be careful how you walk in this field, there are lots of rocks cropping up.

你在這塊地里行走時要小心禁16无码黄片，地面上有許多露出來的石頭。

We can put the same quantity of oil into the jet engine twice, one test on ordinary ground, and the other on ice ground. If the reading values on the spring mechanical counter will be the same at 2 times, then the spaces the heavy moves will be different.

在噴氣發(fā)動機中放入同樣多的燃油分別做2次試驗国产综合色在线视频区天天综合色，一次在普通地面上拍拍欧美性爱，一次在冰面上，如果2次試驗中彈簧計力器的讀數(shù)都一樣黄色网站啪啪，那么重物前進的距離是會不同的人妻系列影视无码专区首页。

The above three methods are effective in avoiding the impact of noise on residential, but there are some inadequacies of their first method, that is, a separate pump house is located on the ground.

上述三種方法都有效地避免了噪音對住宅的影響，但各自都存在一些不足第一種方法亚洲熟女精精品一区，即水泵房單獨設(shè)在地面上三级三级三级A级全黄公司的。

If it is placed on the floor or flat ground, all it can do is shuffle about helplessly and, no doubt, painfully, until it reaches some slight elevation from which it can throw itself into the air.

如果被放在地板或平坦的地面上，它就只會無助地日韩性交XXXX，毫無疑問很痛苦地欧美日韩精品，蠕動，直到它挪到了稍高的位置黑人跟日韩少妇性交aaa免费视频网直播。

And sliding from the shoulders of Dantès as dextrously as he had ascended, he nimbly leaped from the table to the ground.

憑著象剛才上去那樣靈巧地從唐太斯的肩上溜了下來色哟哟一区二区三区视频，敏捷地從桌上跳到地面上。

And sliding from the shoulders of Dants as dextrously as he had ascended, he nimbly leaped from the table to the ground

憑著象剛才上去那樣靈巧地從唐太斯的肩上溜了下來WWAVA一片，敏捷地從桌上跳到地面上97碰碰色。