Precise 发表于 2025-3-21 20:04:25
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The Conditions of Peat Formation,omass is transformed into successive coal ranks which are expressed by such terms as (in order of increasing rank), brown coal, subbituminous, high, medium and low volatile bituminous coal, metabituminous coal, semi-anthracite and anthracite.不持续就爆 发表于 2025-3-22 03:25:45
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Amy E. Gilliam MD,Anita C. Gilliam MD, PhDositional assessment becomes part of the logging process, whereby either outcrops, bore cores, geophysical signals or a combination of these are used (Fisher and McGowen 1967; Weber et al. 1984; Hamilton and Beckett 1984; Hamilton 1986).Seizure 发表于 2025-3-22 18:23:21
Epidemiology and Environmental Risk Factorsge 1937, 1952; van Leckwijck 1948; Wanless 1931, 1950; Wanless and Weller 1932; Wanless and Shephard 1936; Weller 1956, 1958; Moore 1950; Moore 1959; Jessen 1956a–c, 1961; Jessen et al. 1952, and others). A comprehensive summary of the early work is given by Duff et al. (1967).救护车 发表于 2025-3-22 21:18:37
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