Respirable dust levels in coal, metal, and nonmetal mines

详细信息    Respirable dust levels in coal, metal, and nonmetal mines

• 翻译题名：在煤田, 金属及非金属矿山中可呼吸的尘埃标准
• 丛编题名：Information Circular
• 责任者：Watts ; Parker
• 出版日期：1987
• 语种：eng
• 出版者：U.S. Bureau of Mines
• 页数：23 p.
• 出版地：Pittsburgh, Pa.
• 第一责任说明：W.F. Watts, Jr. and D.R. Parker
• 分类号：a725

MARC全文

02a0017074；20011205d1987 ekmy0engy01；eng；a z 000yy；r；Respirable dust levels in coal, metal, and nonmetal mines；W.F. Watts, Jr. and D.R. Parker；Pittsburgh, Pa.；U.S. Bureau of Mines；1987；23 p.；ill；Information Circular；U.S. Bureau of Mines；no.9125；2001b；aInformation Circular ; fU.S. Bureau of Mines ; vno.9125；在煤田, 金属及非金属矿山中可呼吸的尘埃标准；a725；Watts ; Parker；W.F., Jr. ; D.R.；101；454471；P；720.66；In3；v9125 ; r1602.01；a07；b1；cP