CRATE
发表于 2025-3-23 12:06:11
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合同
发表于 2025-3-23 14:45:08
Einführung in die Betriebswirtschaftslehreent of the total tonnage are used as intermediates for the synthesis of pesticides. Di- and polyisocyanates are the key raw materials for a class of polymers which are known under the collective name polyurethanes and which are manufactured by numerous companies for a great variety of uses..As isocy
DALLY
发表于 2025-3-23 18:30:31
Internationale Unternehmenstätigkeitases from motor vehicles are regarded as being the main source. Although present in smaller quantities than the corresponding PAH, they deserve special attention because of their biological activity: a number of them have proved to be mutagenic and carcinogenic in animal testing. Nitro-PAH are not o
instructive
发表于 2025-3-23 22:11:41
Internationale Unternehmenstätigkeitand toxic effects of chlorinated ethanes vary substantially depending on their toxicokinetics. A human risk seems to exist only at the workplace, especially with 1,2-dichloroethane, 1,1,1- and 1,1,2trichloroethane..Environmental hazards are likely with compounds produced in large amounts although me
prick-test
发表于 2025-3-24 05:07:33
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考得
发表于 2025-3-24 09:26:19
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micturition
发表于 2025-3-24 12:35:13
Book 1991nds and chemical industry produces about one hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural
NOCT
发表于 2025-3-24 18:35:26
1867-979Xper year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural978-3-662-15019-1978-3-540-46757-1Series ISSN 1867-979X Series E-ISSN 1616-864X
Shuttle
发表于 2025-3-24 19:53:37
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遗传学
发表于 2025-3-25 00:26:16
Isocyanates,ion is presented. Recommendations on safe handling of isocyanates, on workplace monitoring and on occupational hygiene measures are given. The efforts of the isocyanate manufacturers to generate additional information in this area by jointly sponsoring research projects are illustrated.