扩张
发表于 2025-3-25 05:07:21
Behavior of Water in Oriental Lacquersoea usitate (Burma and Tailand). Of these, the tree, Rhus vernicifera gives the best quality sap as a material for coatings which has been used in China for thousands of years. The lacquer wares characteristic of Korean and Japanese culture are also based on the same sap as in China.
reject
发表于 2025-3-25 10:21:55
Simultaneous Interpenetrating Networks Based on Vernonia Oil Polyesters and Polystyrene: II. A Compa new polymers based on such oils represent an alternative approach to reducing the dependence on petrochemical derivatives (1–7). Triglyceride oils can be polymerized to form interpenetrating polymer networks, IPN’s. An IPN may be defined as a combination of two polymers in network form, at least on
祖先
发表于 2025-3-25 14:32:03
Book 1986 larch together; That they may see, and know and consider and understand together, That the hand of the Lord hath done this, ••• Isaiah, 41:19 and 20 (first portion) The need to improve our utilization of the Earth‘s natural resources is everyone‘s business, from every country. This book presents pa
legacy
发表于 2025-3-25 19:53:24
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袖章
发表于 2025-3-25 20:31:45
Graft Copolymerization onto Cellulose Acetate and Wood Using Anionic Polymerization can be controlled by chemical modification prior to grafting, and the mechanical properties of the grafted polymer can be engineered by controlling the chemical composition and molecular weight of the graft. Thus, we can make materials with fibers of controlled stiffness covalently bound in a polym
正常
发表于 2025-3-26 03:02:06
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不自然
发表于 2025-3-26 05:04:38
Book 1986years later. The other half of the authors are entirely new. Bo~h of these books grew out of symposia sponsored by the Polymeric Materials: Science and Engineering Division of the American Chemical Society. The papers for the present book are based loosely on a symposium held at the Miami Beach meet
美丽的写
发表于 2025-3-26 08:52:56
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真实的人
发表于 2025-3-26 16:07:34
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最高点
发表于 2025-3-26 17:42:41
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