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| 21. | For cast materials, grey cast iron, synthetic materials, itanium and titanium alloys, non-iron metals and also high temperature resistant steels as well as for woodworking purposes. |
| 广泛使用于铸造材料、灰铸铁、合成材料、钛合金、非铁金属、耐高温钢以及木工领域。 |
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| 22. | Stockings made of one of these synthetic materials. |
| 尼龙长袜用这些合成材料制成的长袜 |
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| 23. | of creating unheard-of synthetic materials to supplement or even replace our old standard basics; |
| 创造前所未闻的合成材料来补充或甚至取代旧的普通基本材料； |
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| 24. | To achieve a series of breakthroughs in important projects in the fields of high-performance synthetic materials, vanadium, titanium, rare earth materials, high purity metallic materials and photoelectron materials. |
| 在高性能合成材料和钒钛、稀土材料、高纯金属材料、光电子材料等方面，取得一批重大项目建设上的突破。 |
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| 25. | Describing the effect of synthesized diamond in different carbon source. |
| 叙述了不同炭源材料合成金刚石的效果。 |
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| 26. | fabric ,woven, obtained from strip or the like of a width not exceeding 5mm, of synthetic textile materials |
| 机织织物,由宽度不超过5mm的合成纺织材料条或类似材料织成 |
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| 27. | Many synthetic materials have been invented which can be used instead of natural rubber. |
| 人们发明了许多能代替天然橡胶的合成材料。 |
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| 28. | surfactant but because of its long history is categorized（分类） separately from the so-called synthetic(合成的 |
| 肥皂是阴离子型表面活性剂，但由于它的悠久历史而把它与称为合成洗涤剂的那一类区别开来。 |
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| 29. | Geosynthetics plastic woven film yarn geotextile |
| GB/T17690-1999土工合成材料塑料扁丝编织土工布 |
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| 30. | Synthesis of Functional Polymer Material, Fine Chemicals, Modification of Polymer Surface, Conductive Polymer and Nano Materials. |
| 机能性高分子材料合成，特用化学品之合成，高分子表面之改质，导电性高分子材料及奈米材料。 |
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