较早
发表于 2025-3-25 06:30:16
Control of , in Plumbing Systems,ars old). In contrast, although legionnaires’ disease has developed in some healthy persons, outbreaks involving healthy persons have been limited to the milder, nonpneumonia form of the disease called Pontiac fever.
Trigger-Point
发表于 2025-3-25 10:26:43
Vinyl Chloride,rganosol (dispersions in plasticizers and volatile solvent), and latex (a colloidal dispersion in water used to coat paper, fabric, or leather) (USEPA 1985a). Its structure and properties are presented in Table 1.
单色
发表于 2025-3-25 13:28:47
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诙谐
发表于 2025-3-25 18:24:06
George W. Waretimes, however, mechanical systems are composed of physically distinct elements that are not so large in number that a continuum description of the entire system is feasible or possible, or, although large in number, cannot be linked to macroscopic behavior through presently known constitutive laws.
Innocence
发表于 2025-3-25 21:47:37
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Apogee
发表于 2025-3-26 01:31:02
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胡言乱语
发表于 2025-3-26 06:50:07
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使害羞
发表于 2025-3-26 10:18:54
Cyanide,drogen cyanide (HCN) and as CN.. The organic cyanides are called nitriles; a few of them dissociate to yield CN. or HCN. In this Health Advisory, only a few widely used industrial inorganic cyanides—hydrogen cyanide (HCN, or prussic acid), sodium cyanide (NaCN), and potassium cyanide (KCN)—are discussed.
Itinerant
发表于 2025-3-26 13:54:02
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overrule
发表于 2025-3-26 17:58:24
978-1-4684-7085-7Springer-Verlag New York Inc 1989