以下为句子列表：
英文: 19 June 2007 - Polyester staple fiber prices began Tuesday bottoming out in China after paraxylene last Friday rebounded on Asian spot market.
中文: 2007年6月19日--自上周五亚洲现货市场对位二甲苯反弹后，中国涤纶短纤价格星期二开始降到最低点。
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英文: A process approaching 3-and 4-chlorophthalic anhydride in high purity via chloriation of o-xylene, oxidation of monochloro-o-xylene by air in gas phase, and separation of 3-and 4-chlorophthalic anhydride afterwards by distillation is described.
中文: 摘要介绍由邻二甲苯氯代，再经空气氧化及异构体分离合成氯代苯酐中试规模的合成路线。
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英文: Abstract: Necessities for construction design were expounded from quality,expense,schedule and safety control etc.with an example of the xylene to wer in the PX unit.Suggestions for construction design was put forward.
中文: 文摘:以某石油化工总厂PX装置二甲苯塔为例，从质量、费用、进度和安全控制全过程的角度，阐述了对大型塔器的设计、制造和安装一体化的要求，即可施工性设计的必要性，并对如何在工程建设全过程中做好可施工性设计提出了建议。
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英文: Paraxylene is used in the production of polyester fibers and plastic bottles.
中文: 对位二甲苯用于生产聚酯光纤和塑料瓶。
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英文: Four major peaks have been deteced on the ％ PAGE after staining with Xylene Brilliant Cyanin C and scanning by visible light,Sehlieren and U/V pattern of We preparation in the analytical ultracentrifuge give four major peaks with S_(0·w)=98, 8, 7 and s.
中文: 病毒粒子经 ％凝胶电泳,染色扫描后有个峰。 超速离心分析有个主峰,其沉降系数分别为S_(0.w)=98s(B组份),8s(M组份),7s(T_b组份),和s(T_a组份)。
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