查询词典 conic section

The observer is at a great distance compared to the other dimensions of the experiment and the rays are nearly perpendicular to the reflecting surfaces, then the path difference between the two waves (corresponding to r1-r2 in the preceding section) is just twice the thickness d of the air wedge at each point.

如果观察者比起实验装置来讲距离较远而且光线较接近于垂直反射于表面，那么这两光波的光程差(在前面所述的相应部分 r1-r2)就仅仅是空气劈尖在该点处的厚度 d 的两倍。

A helicopter rotor hub for use in an air-driven helicopter comprises a section of a spherical stainless steel ball attached to the end of a hollow rotor shaft.

直升机旋翼枢纽用于空气驱动直升机组成部分球形不锈钢球重视的结尾空心转子轴。

Because "Still allocated to Star" the time also had section of distances, because opposite had neurosis's man every day 5 spots the news broadcast was very much loud, because in the town airedale were getting more and more, had discovered the dog big cry also made a sound, in brief, occasionally has not sent falls asleep again, also has not sent 6 reminded NONO collapsed quickly...

因为离《星尚》拨出的时间还有一段距离，因为对面的一个有精神病的男人每天5点把新闻广播开的很响，因为镇上的大狗越来越多，发现了狗大的叫声也响，总之，偶没发再睡着，也没发6点醒来NONO快崩溃了。。。

It is notable, however, that only about 15% of the 75% is available unless air is also in contact with the underside of the wing or airfoil section.

这是显着的，不过，只有约15 ％的75 ％是可用，除非空气，也是在接触底机翼或翼型节。

And look at the airfoil or wing section of our airplane in such a way that we will have a little better understanding of how our aircraft flies.

并期待在翼型或机翼的一段，我们的飞机在这样一种方式，我们将有少许更好地了解如何我们的飞机苍蝇。

Products have excellent characteristics of beauty, heat insulating, sound-proofing, airtightness, antiweatherability, anti-chemical and antiimpacting, including large cross-section, big wall-thickness, many cavities, integral whole window, soft-hard extrusion and Europe style.

产品除具有防腐耐侯、隔音隔热、密封保温、抗冲美观等优良性能外，还具有大断面、大壁厚、多腔室、一体窗、软硬共挤、通配性强和欧式风格等特点。

If possible, I'd like to have an aisle seat in non-smoking section.

如果可能的话，我想要一个非吸烟区靠走道的座位。

I'd like to have an aisle seat in the smoking section, please.

在这里。我想要抽烟区靠近走道的位子。

All requisitions went through the Travis Air Force Base medical supply section to the Alameda Army Medical Supply Depot.

所有的需求从崔维斯空军基地医疗供应部传达到阿拉米达陆军医疗供应站。

8Th North East Section MNFC 1,901 birds Alencon.

阿郎松MNFC东北赛区第八名，1901羽

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。