查询词典 air balloon

However, the focus of the light on the solar cell can also be fine-tuned by changing the air-pressure within the balloon, and thus the curvature of the mirror.

然而，通过改变气球内部的气压，可以对照射在太阳能电池上的光线焦点进行微调，因此也可以改变镜面的曲率。

The balloon-borne radars can virtually act as AWACS themselves, an Air Force official said.

空军官员说，气球载雷达能够扮演预警机本身的角色。

If the air drag and composite motion are considered in the analysis of the balloon yarn in ring spinning,the calculation with the circular cyclindrical coordinates is simpler and more precise.

在环锭纺气圈的分析中，用柱面坐标系计算能简明、清晰地反映空气阻尼力、复合运动诸因素的综合影响。本文介绍了根据照相测量的气圈形态参数计算纱线张力的新方法

An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.

浮空器从周围空气的浮力而不是从空气动力获得提升力的航空器，特指气球或飞船

The hot air rising from the fire pushed the balloon up into the sky.

他们在气球下点燃了火，火焰发出的热气把气球推向了天空。

"Hot-air balloons date back to the year 1783, and within a few months of the first flight a French scientist, Charles, went up two miles in a free balloon."

热气球可追溯至1783年，在首次飞行后几个月，法国科学家Charles乘自由气球上升至2英里高处。

The simplest way to understand how a jet engine works is to watch air escaping from a balloon.

要弄懂喷气发动机的工作原理，最简单的方法是观察空气是怎样从气球里逸出来的。

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The self-propelled, self-guided colonoscopy deice uses a balloon and air pressure to carry a miniature camera though the bowel.

这种自我驱动、自我导航的结肠镜设备用一个气球，靠气压将一个微型摄像头带入肠中。

Experimental attempts may have begun by 1709, but not until 1783 did J.-M. and J.-é. Montgolfier develop a fabric-bag balloon that would rise when filled with hot air.

1709年人类开始作实验性的尝试，但一直至1783年法国蒙戈尔费埃兄弟才发展出一种纤维织物袋气球，其在充满热空气后即可浮升。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。