尽管 发表于 2025-3-26 21:31:42
trom (Engstrom & Wright, 1984). This allows separation of the sediment into authigenic, biogenic and allogenic components. Lead-210 dating of the same core enabled trends in both concentration (mg g . dry mass) and influx (mg cm .a .) to be evaluated, and to be compared with events over the past twoexpound 发表于 2025-3-27 01:24:02
David D. Woods,Nadine B. Sartereen growing during the past four decades or so. One manifestation of this concern is found in occurrence of public debates as well as in the demand for full environmental impact assessment before a water-resources project is approved. Engineering soundness and economic feasibility are no longer suff勤劳 发表于 2025-3-27 09:02:04
http://reply.papertrans.cn/99/9818/981702/981702_33.png分开如此和谐 发表于 2025-3-27 12:55:55
Peter A. Wieringa,Henk G. Stassents through the unsaturated zone. However, discrepancies between model results and actual field measurements are commonly found in the literature. In particular, several studies have detected high concentrations of pesticides in groundwater shortly after the first rainfall. Modelling and monitoring o战胜 发表于 2025-3-27 15:03:18
Robert T. Plantore easily transformed into a tumorigenic state (Harris 1987). The comparison of human and rodent cells would help greatly to disclose essential mechanisms of the transformation of human cells. However, little work has so far been done along these lines primarily for two reasons. One is that the cel休闲 发表于 2025-3-27 17:54:08
http://reply.papertrans.cn/99/9818/981702/981702_36.pngHERE 发表于 2025-3-28 01:51:18
http://reply.papertrans.cn/99/9818/981702/981702_37.pngaltruism 发表于 2025-3-28 03:54:33
James Reason and decision-making systems need a better integration of environ mental, economic and social considerations. Many organizations are showing considerable interest in Environmental Impact Assessment (EIA) and its role in project planning and policy evaluation and as an aid to decision-making. ConseqGRAZE 发表于 2025-3-28 09:25:55
Sue Bakerisk Analysis: Contributions from the Psychological and Decision Sciences." The Institute was held in Les Arcs. France and functioned as a high level teaching activity during which scientific research results were presented in detail by eminent lecturers. Support for the Institute was provided by graFeigned 发表于 2025-3-28 12:17:56
Florian G. Jentschfects of these releases have rarely been reported (e.g., Lynch .. 2001). To ensure the continuing safety and positive public image of biological control, many countries are requiring risk assessment for all biological control agents. This is new for macro-organisms in inundative use, although as cla