加强防卫
发表于 2025-3-23 10:12:10
Sarah Sheya,Jaime Chao Mignano,Edward P. ClappThe ethical issues arising from the use of polymers are discussed with particular reference to their effects on the environment. Air pollution, the toxicity of raw materials, developments in biodegradable polymers and the symbols used to facilitate recycling are described.
直言不讳
发表于 2025-3-23 14:52:30
Carolyn M. ShieldsThe aim of this chapter is to introduce the reader to maritime transportation. In the following a short overview on numbers and figures of world trade, oceangoing transportation and especially container ship transportation, which isthe focus of this thesis, is given.
ethereal
发表于 2025-3-23 20:02:59
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小故事
发表于 2025-3-23 22:46:31
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STANT
发表于 2025-3-24 05:09:26
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moratorium
发表于 2025-3-24 09:22:30
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受伤
发表于 2025-3-24 13:25:03
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Individual
发表于 2025-3-24 15:42:32
A Study on the Pseudorandom Properties of Sequences Generated Via the Additive Orderuch sequences have the maximum period. The autocorrelation is also studied. For the case of large ., nontrivial upper bounds are given; for the binary case, experimental results show that the autocorrelation of two types of sequences is small compared with the period of sequences.
organic-matrix
发表于 2025-3-24 21:49:33
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Corroborate
发表于 2025-3-25 01:10:46
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