1. Accidents, both from injuries or harmful substances entering the eye, can cause scarring and ulceration.

2. Bogwood is semi-fossilised, and should not contain harmful substances, but it may stain the water dark brown.

3. So when it's added to harmful substances, it makes them unpalatable.

4. Use aquarium gravel, as it should not leach harmful substances into the water.

5. Filter tips clean some harmful substance from the smoke.

6. Or perhaps the harmful substance is a medicine.

7. Howevee, some harmful substance volatilized from fly ash in melting process, which caused second contamination.

8. Betadine, the complaint said, is " a harmful substance that may cause death if ingested. "

9. However, some harmful substance volatilized from fly ash in melting process, which caused second contamination.

10. Ammonia is a poisonous and harmful substance that should be recovered during equipment maintenance so as to avoid it leaks out to pollute environment and hurt human.

11. Aflatoxin B1 (AFB1) and zearalenone (ZEA) are harmful substance existed in cereals and secondary metabolites produced by fungus which contaminated cereals.

12. The harmful substance for health includes fatal substance, substance that can arise hypersusceptibility, environmental hormone and futures.

13. When Delaney offered his amendment, scientists could identify traces of potentially harmful substances down to a level of parts per million.

14. Objective To improve the working efficiency of the quarantine supervision over pert passengers, and to prevent infectious diseases[sentencedict.com], poisonous and harmful substance from entering our country.

15. The filter tip is the important protective media for smokers because it can reduce the harmfulness by removing the harmful substance of cigarettes.

16. Vitrification is the safest disposal method at present. Howevee, some harmful substance volatilized from fly ash in melting process, which caused second contamination.

17. A tainted substance, especially food or drink, is not safe because it is spoiled or contains a harmful substance or poison.

18. Meanwhile it also accords with European union to electric electron manufacture in limit be venomous harmful substance use injunction 's request.

19. Through the transformation function of modifier, it successfully realizes zero emission of such harmful substance as CH2O in combustion of low-carbon fuel.

20. Article 49 Materials containing radioactivity in excess of standards or materials containing toxic and harmful substance easy to dissolve in the water may not be used in a marine construction project.

21. The utility model provides a gas mask for operating personnel who works with harmful substance.

22. In recent years, it has become more and more stringent to control over harmful substance contents in textiles among the nations in the world.

23. Fabrics of China measure standard and foreign countries have greatly difference, form the regulation to products detection of harmful substance yet especially at present.

24. It can absorb each harmful gas so as to make the air clean and fresh and it also can absorb harmful substance in the water to change common water into good drinking water.

25. The company also provides wash stations that allow residents to get rid of any potentially harmful substance they may have been contaminated with.

26. Hydrogen sulfide in coke oven gas is a very harmful substance which must be cleared off.