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1·The air is so black with diesel fumes and coal dust, I can barely see.

天空由于充满柴油机的浓烟和煤灰而如此黑，我几乎看不见。《柯林斯英汉双解大词典》

2·He fell ill after breathing coal dust for many years.

呼吸了多年煤灰之后，他病倒了。

3·He became ill after breathing coal dust for many years.

他因多年的吸进煤灰而生病了。

4·His face and hands were covered with grim of coal dust.

他的脸和双手都沾满了煤炭的污垢。

5·He became ill after breathing (in) coal dust for many years.

因常年吸入煤粉，他病了。

6·The explosion characteristics of pure coal dust were studied.

实验研究了纯煤尘的爆炸特性。

7·We ran it on sawdust, cubed wood, coffee grounds and coal dust.

我们跑它木屑，立方木材，咖啡的理由，煤尘。

8·Coal worker's pneumoconiosis results from inhalation of coal dust.

煤炭工人的煤尘肺是由吸入煤矿粉尘引起。

9·He became ill after breathing in a lot of coal dust for many years.

多年来他吸入了大量煤尘，后来他得了病。

10·The explosion characteristics of coal dust-methane mixture were studied.

实验研究了煤尘-甲烷混合物的爆炸特性。

煤尘

1·At Linfen, residents have said they literally choke on coal dust in the evenings.

临汾的当地居民说，到了晚上，煤尘让他们几乎窒息。

2·The tunnels are filled with exhaust emissions, coal dust and the roar of blasting.

隧道里充满着排出的废气、煤尘和爆破声。

3·He became ill after breathing in a lot of coal dust for many years.

多年来他吸入了大量煤尘，后来他得了病。

4·Objective: To find a method for promoting healing of facial burn wounds caused by coal dust explosion.

目的：寻求促进面部煤尘燃爆伤创面愈合的治疗方法。

5·Stray current in coal mine underground is an important factor caused gas and coal dust explosion, which seriously threatened safety production in mines.

煤矿井下杂散电流是引起瓦斯、煤尘爆炸的一个重要起因，严重威胁到煤矿的安全生产。

煤粉

1·The windblown dust from the Loess Plateau, along with a layer of local coal dust, had settled on her shoes.

风带来了黄土高坡的尘土，掺杂着一层当地的煤粉，落在了她的鞋上。

2·A specially-designed addition agent is used instead of coal dust in green molding sand for the trial production of impact molding line made by GF company.

本文对于我厂在新铸造车间引进的GF气冲造型线上所用的型砂不添加煤粉。

3·Three kinds of leakage proof measures for coal dust fan are introduced.

介绍了煤粉风机的三种防泄漏措施。

4·If air is used as a carrier for transporting the powdered substances (such as the coal dust, the metal mineral powder and the flour), explosions are easy to cause.

若以空气为载体运送粉状物质(如煤粉、金属矿粉、面粉)，容易导致爆炸。

5·The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately.

发气量 试验方法的优点是能够迅速和准确地确定 型 砂中有效煤粉的具体含量。