It is speculated that particles mainly come from transport and ground dust.
推测颗粒物的主要来源为交通运输和地面扬尘。
A strong wind of dust storms can carry heavy objects, so you should try to stay low, and close to the ground, and protect your head with your arms or a backpack.
强劲的沙尘暴可以卷起重物，所以你应该尽量保持低姿态，靠近地面，并用你的手臂或背包保护你的头部。
Though the heavy metal lead is largely gone from our gasoline and paint, it still lies insidiously below us in the ground and occasionally drifts through the air as dust.
尽管金属铅大部分通过汽油和油漆排放出去了，但任有一部分藏在我们看不见的地下，有时候作为灰尘漂浮在空气中。
WISE picked up the rosy glow of the nebula's warm dust clouds, but the Rosette nebula is visible from the ground with a small telescope or a good pair of binoculars.
WISE望远镜拍下了炙热尘埃云发出的玫瑰色光芒，但在地面上，用小型天文望远镜或精良的双筒望远镜就可以看到玫瑰星云了。
That happens when heavier particles are lifted by the wind and then fall back to the ground, hammering and shattering the dust-clumps as they do so.
这种状况在较重的颗粒被风吹起再落回地面，从而对块状物进行敲击和摔打后发生。
There such a violent wind was blowing that she was almost blinded with dust, and was obliged to throw herself upon the ground, and feel about after the precious herb.
猛烈的风挟着土刮得她几乎睁不开眼，她只好伏在地上，用触感找那珍贵的四叶草。
Then the Lord said to Moses, "Tell Aaron, 'Stretch out your staff and strike the dust of the ground,' and throughout the land of Egypt the dust will become gnats."
耶和华吩咐摩西说：“你对亚伦说：‘伸出你的杖击打地上的尘土，使尘土在埃及遍地变作虱子(或作：虼蚤；下同)。’”
And the dust returns to the ground it came from, and the spirit returns to God who gave it.
尘土仍归于地，灵仍归于赐灵的神。
I still remember how he fell when the Americans shot him, and I saw him clawing on the ground in the dust before his soul left his body.
我还记得他被美国人射中后是如何倒地的，我看到他在灵魂离开躯体之前，在地上的尘土中抓来抓去的样子。
He wasn't burned because the survival kit attached to him by a long cord hit the ground first, throwing up a dust cloud that put out the fire in a 10-foot circle. He was surrounded by flames.
原来，由于他身上还有一根长长的绳子，绳子的另一头是他的野外生存套装背包，而背包先落地，把地面尘土高高扬起，瞬间把直径10英尺范围内的火焰给灭了，结果他没有被烧伤。
The crew went there to hunt for dark dust-devil tracks on the ground.
全体研究人员前往该处寻找地面上的深色尘暴痕迹。
Researchers have reported the presence of hundreds of compounds in ground zero dust, among them known carcinogens.
研究人员检测了座标零点粉尘中存在的数百种化合物，它们中的一些是致癌物质。
The ground is cold and moist, with the chill factor amplified by ventilation fans used to blow fresh air into the mine, and the sprinkler that keep the coal dust down.
因为有通风设备往里面输送新鲜空气，还有洒水器不断地给煤浇水以降温，所以地下既阴冷又潮湿。
But a 2009 study published in the Journal of Occupational and Environmental Medicine suggested a link between the type of cancer Wiebicke had and exposure to the toxic dust at ground zero.
但是2009年由职业与环境医学期刊发布的研究表明，在第一线的有毒尘土与韦比克所患得癌症有关。
With the dust type ground to automatically determine the size of the vacuum suction ability.
其吸尘能力能随着地面的尘型自动确定吸力的大小。
The new safety level is about 100 times higher than the background level of dust at ground level.
新的安全水平比地平面灰尘背景水平高出一百倍，也比从火山爆发以来测试飞机在英国上空所测的数据要高很多。
The mission is examining the sky as well as the ground. A Canadian instrument is using a laser beam to study dust and clouds overhead.
这次任务同时对天空和地表进行研究，加拿大所制造的仪器所发射的激光可以帮助研究头上方的尘埃和云层。
Ground, with his face in the dust.
地面，与他的在尘土的面孔。
One is the dust on the ground material. It is the material basis of form sandstorm.
一是地面上的沙尘物质。它是形成沙尘暴的物质基础。
The ground - based simulation tests demonstrated that the space dust collision could result in the damage of the above materials and elements to different extent.
地面模拟试验表明，空间粉尘高速撞击下对这些材料与元器件会产生不同程度的损伤。
Port facilities construction and renovation contribute to surface and ground water contamination and air pollution from asbestos, lead-based paint, dust, sediments, PCBs and petroleum hydrocarbons.
港口设施的建设和改造，而造成地下水污染和对空气的污染是来自石棉、含铅的油漆、灰尘、沉淀物、多氯联苯、石油碳氢化合物等。
At ground level the Great Pyramid of Meereen was a hushed place, full of dust and shadows.
在底层，弥林的大金字塔是个静默之处，满是灰尘与阴影。
The man rose from the ground, beating the dust off his clothes.
那个男子从地上站了起来，拍掉衣服上的尘土。(分词动作后于谓语动作)。
The dead, shaven head, stained with blood and grimed with dust, was trailed along the ground, rolling from side to side on the long neck.
血迹斑斑，糊满尘土，已经僵死的细脖子上的剃了半边的脑袋，动来动去地在地上拖着。
Winds pick up fine particles from the ground, and then the air becomes thick with dust.
地面细沙被风卷起，空气中便充满厚厚灰尘。
The surface dust, low humidity of the air, ground and traffic dust stirred up.
地面灰尘大，空气湿度低，地面的人和车流使灰尘搅动起来。
For too long you have been ground into the dust, and used in so many ways that have been demeaning for souls such as you.
你们绑缚在尘土中已经太久，并且习惯于这许多的方式，这些一直贬低你们灵魂真实状态的方式。
For too long you have been ground into the dust, and used in so many ways that have been demeaning for souls such as you.
你们绑缚在尘土中已经太久，并且习惯于这许多的方式，这些一直贬低你们灵魂真实状态的方式。
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