Information Circular1952 |
المحتوى
| 1 | |
| 2 | |
| 3 | |
| 5 | |
| 6 | |
| 9 | |
| 11 | |
| 12 | |
| 15 | |
| 16 | |
| 17 | |
| 19 | |
| 21 | |
| 22 | |
| 24 | |
| 25 | |
| 29 | |
| 30 | |
| 33 | |
| 35 | |
| 37 | |
| 41 | |
| 44 | |
| 46 | |
| 48 | |
| 8 | |
| 14 | |
| 1 | |
| 7 | |
| 1 | |
| 1 | |
| 1 | |
| 8 | |
| 13 | |
| 14 | |
| 19 | |
| 21 | |
| 28 | |
| 46 | |
| 67 | |
| 17 | |
| 5 | |
| 10 | |
| 20 | |
| 5 | |
| 22 | |
| 24 | |
| 28 | |
| 30 | |
| 36 | |
| 43 | |
| 44 | |
| 53 | |
| 7 | |
| 9 | |
| 1 | |
| 6 | |
| 13 | |
| 1 | |
| 73 | |
| 105 | |
| 119 | |
| 126 | |
| 2 | |
| 9 | |
| 16 | |
| 3 | |
| 8 | |
| 12 | |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
accident acid amount of copper anemia animals Apply asbestosis average bandages boron nitride bricks Bureau of Mines calcium carbon dioxide Carbon tetrachloride caused chemical coal mines coal-mine coke copper sulfate County determine disability or death dolomitic doses drilling effect electrical employee employment engineer entries equipment explosions exposure feet field fire fire-fighting facilities first-aid fuel hazards heat hemoglobin hose hydrated lime hydrogen ignition increase industry Information Circular injection injury installed investigation iron kiln lignite limestone liver manganese material metal method milk mineral natural gas obtained occupational disease operation oxide oxygen patient payable percent petroleum Pittsburgh plant Pocahontas poisoning pressure problem production quicklime rats reservoir rock dust roof bolts safety salts samples Scurry County silicon dioxide silicosis storage sulfur synthesis synthesis gas temperature tests tion underground United Workmen's Compensation wound