1 Matthew scrubbed the coal dust from his face.

2 Many miners have suffered from the effects of coal dust in their lungs.

3 Coal to heat coal dust, using a spirit burner.

4 Wilson had grown up black with coal dust.

5 A lever lid tin was used to heat coal dust, using a spirit burner.

6 His face was still covered in coal dust and he looked anything but a gent.

7 For some of the women, selling the coal dust provides their only income to feed their families.

8 Campaigners claim deposits of coal dust released into the atmosphere are a health hazard and a nuisance.

9 Coal dust exposure is an occupational hazard for coal miners.

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

11 Characterization is made of two coal dust samples and several types of coal dust restrainer have been developed based on surface behavior of dust particle.

12 The explosion pressure of coal dust is increased with the coal dust size decreased.

13 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.

14 As the coal dust concentration increase, the maximum explosion pressure and maximum rate of pressure rise go up first then go down.

15 The harmful coal dust was produced during coal transportation by using belt conveyor coal preparation plant.

16 Therefore, it is very important to analyze the coal dust production during roadway driving and formulate reasonable safety check table.

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

18 His face and hands were coverd with grime from the coal dust.

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

20 Jeff even carried out trial runs using rockets stuffed with coal dust.

21 Organic compounds including a number of carcinogenic polycyclic aromatic hydrocarbons are also present in coal dust.

22 Though it is not yet the coal regions, the trees feel darkened by coal dust.

23 The blast, 610m below ground, is thought to have been caused by a mix of coal dust and methane gas.

24 Another study has shown a positive association between gastric cancer and exposure to coal dust in those miners who smoked.

25 He was kneeling before the fire, his hands and face black with coal dust.

26 This product is a new kind of kiln lining materials made with coal dust ceramisite.

27 This paper analyzes the relations between the tenency of coal self-ignite and the risk of coal dust detonating with concrete examples.

28 Histologically, the characteristic lesion of CWP is the so-called coal macule, which consists of a focal accumulation of coal dust surrounded by a small amount of fibrous tissue.

29 His face and hands were covered with grime from the coal dust.

30 Results shown that there is an ideal dust loading for coal dust explosion, and the explosion pressure of coal dust is maximal on this ideal dust loading.

31 Full-close management is realized in coal coke site to avoid the floating pollution of coal dust.

32 Black lung is a coal miner's disease caused by the frequent inhaling of coal dust.

33 It's suffused with a thick smog that's a perpetual sulphur-yellow, and suffocated by motes of coal dust suspended in the breeze.

34 The relations between the maximum explosion pressure, the maximum quantity of draw-off heat and coal dust concentration, methane concentration were calculated.

35 OBJECTIVE:To prevent and treat contact dermatitis for contacting chemical substance harmful to workers health such as coal dust, tar, anthrone and naphthol, etc.

36 This hoisting gear is used for hoisting or transporting at the place of coal shaft with explosive mixture of gas or coal dust.

37 This series distribution device is applicable for coal mine with firedamp or coal dust in the ambient.

38 FS powder can be used as a substitute for coal dust to prevent metal penetration.

39 The physical mechanics property of the slurry of coal dust is tested, and the actual volume of it in the separated strata space is calculated in condition that it has been compressed.

40 Coal miners far and away have the highest mortality rate from pneumoconiosis, or black lung disease, which is cause by long-term exposure to coal dust.