You're right. It's dirty from all the dust and sand blowing around in the wind.
对啊。一刮风，就有很多尘土和沙子，太脏了。
The sources of sand-dust during sand blowing weather mainly come from Beijing outskirts.
沙尘天气分沙尘暴、扬沙、浮尘三种，北京扬沙天气的沙尘源以就地起沙为主。
But I am treated like a mineral, a bit of sand blowing about with no sense of you and no knowledge of myself.
但我的待遇像矿物，在风中飘荡的一粒沙子，既没感觉到祢也没觉察到我自己。
Therefor, it is greatly significant to clarify the mechanism of sand blowing process so as to control the production of sand core.
由于砂芯通常采用射芯的方法来制造，因此，了解射砂过程的机理，并且在此基础上对射砂过程加以控制，就显得至关重要。
The utility model relates to a dust storm sampler, which is used for collecting grains in dust storm whether, sand blowing whether and floating whether.
本实用新型涉及一种用于采集沙尘暴天气、扬沙天气、浮尘天气空气中颗粒物的沙尘暴采样器。
In recent years, the numerical simulation of sand blowing process based on two-phase flow theory has been taken seriously and some results have been achieved.
近年来，利用两相流理论对射砂过程进行数值模拟已经受到国内外研究者的重视，并取得了一些进展。
Different land use types have different sand blowing properties, which indicates that adjusting land use structure is an important method to control sand blowing in Beijing.
不同土地利用类型起沙特性不同表明，调整土地利用结构是北京防沙治沙的重要途径。
The blowing sand stung his cheeks.
飞沙打得他的双颊生疼。
It's commonly found in arid regions to provide protection from direct exposure to the sun, as well to protect the mouth and eyes from blowing dust and sand.
这种头巾在干旱地区很常见，他可以提供保护，免受太阳直接暴晒护，同时也可以保护嘴巴和眼睛免受飞尘和飞沙的伤害。
Weather stations in several cities on the North China Plain reported blowing sand and poor visibility in the hours it took the storm to pass.
华北平原多个城市的气象站报道沙尘经过的几个小时间风沙肆虐，可见度很低。
An emigre returning after several years away says a gentle change is blowing across the country, like the wind that deposits black sand from the Karakum desert over Niyazov's white marble capital.
一个离开几年的流亡者回来说，温和的改变正在发生，就象是风把卡拉库姆沙漠的黑色的沙吹到niyazov的白色大理石首都。
The sodium silicate sand prepared with higher modulus sodium silicate has advantages of low residual strength, short CO2 blowing time, high moisture absorption ability and surface stability.
使用较高模数的水玻璃混制的型砂具有残留强度低、吹CO2时间短等优点，并有好的抗吸湿性和表面稳定性。
Years of exposure to the ocean winds, blowing sand and salt water, had taken its toll physically on the structure as well.
多年接触海风、扬沙和盐水，建筑的物理结构已经遭到了损伤。
This series air compressor widely used in pneumatic lock, pneumatic tool, tire inflation, blowing process, spray paint, sand blasting and blasting and fluidic element.
本系列空气压缩机广泛应用于气动夹固、风动工具、轮胎充气，吹制工艺、喷漆、喷砂、射流元件及其他需要压缩空气的场所。
Blowing sand with automatic devices and radio-fast-die devices.
带有自动刮砂装置和模具射板快欢装置。
This series air compressor widely used in pneumatic lock, pneumatictool, t ere en fe inflation, blowing process, spray paint, sand blasting and fluidic element.
本系列空气压缩机广泛用于气动夹固、风动工具、轮胎充气、吹制工艺、喷漆、喷砂、射流元件及共它需要压缩空气的场所。
Time, blowing sand and other environmental factors degrade glass surfaces. The aluminum material is expected to retain its clarity for much longer.
时间、风沙及其他环境因素将消磨玻璃表层。铝原料则能更长时间的保持它的透明度。
Trees can stop the wind from blowing the earth away. They can also prevent the sand from moving toward the rich land.
树可以防止风把泥土吹走，也可以阻止风沙吹进良田。
Fine flat sand, never a cat's paw, trees all around of it, and flowers a-blowing like a garding on that old ship.
沙地平滑无比，一丝风也没有，周围有树，那条破船上的花开得跟花园似的。
Soon, while blowing sand, insects sensitive blinked, escaped the sand.
不一会儿，一阵风沙刮来，小虫灵敏地眨了眨眼睛，躲过了沙子。
The sandstorm, blowing sand, and floating dust day Numbers assume the obviously reduced tendency.
沙尘暴、扬沙、浮尘日数呈明显减少趋势。
I wind kept blowing, the hair was Chuisan, some sand into the eyes, tears streaming down can not help.
风不停吹着我，发丝也被吹散，些许沙石飞入眼睛，眼泪不禁流下来。
Describing similar dunes, Kirby said that "dried sand particles that were contaminated by oil were blowing into the dunes of the back beach."
说到同样的沙丘，Kirby说：“被石油污染的干燥沙砾被吹到了沙滩后面的沙丘上。如果要说短时间内被风搬运来的沙子有多少，这里就有很多。”
There is an obvious developing tendency of sandy desertification in the blowing sand region of middle Ningxia in historical time, especially since 1950's.
宁夏中部风沙区的沙质荒漠化在历史时期，尤其是本世纪50年代以来，具有明显扩展的趋势。
There is an obvious developing tendency of sandy desertification in the blowing sand region of middle Ningxia in historical time, especially since 1950's.
宁夏中部风沙区的沙质荒漠化在历史时期，尤其是本世纪50年代以来，具有明显扩展的趋势。
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