查询词典 polyethylene

Dimethylnaphthalene is an ideal raw material of the production of polyethylene naphthalate. It is an important task to obtain 2,6-dimethyinaphthalene in low cost.

2，6-二甲基萘是制备高性能聚酯-聚对萘二甲酸乙二醇酯最理想的原料，如何低成本地获得2，6-二甲基萘已成为一项重要的课题。

Dimethylnaphthalene (2,6-DMN) is a potentially useful raw material for production of polyethylene naphthalate, polybutylene naphalate and liquid crystalline polymers with superior properties. How to industrialize the process of producing 2,6-DMN is getting more and more studied in the world recently.

2，6-二甲基萘(2，6-DMN)是合成新型聚酯树脂聚萘二甲酸乙二醇酯和聚萘二甲酸丁二醇酯以及液晶高分子聚合物的重要原料，所以将2，6-DMN的生产工业化最近几年成为国内外研究的重点。

Marketed by Lake Consumer Products and filled by Wisconsin Pharmacal, the Beyond Fresh Intimates line comes in blow molded containers, supplied by Graham Packaging, made of polyethylene naphthalate, a strong polymer material capable of withstanding high internal pressure.

湖销售和消费产品填补了威斯康星医药品，除了新鲜的亲密线有吹塑容器，格雷厄姆提供的包装，制成的聚乙烯萘，强大的高分子材料能够承受较高的内部压力。

Long-chain branched polyethylene was obtained using a homogeneous bianary catalyst system composed of late and early transition metal complexes,namely a mixture of bis(α-naphthalidine)-2,3-butanediimine NiBr2 and Cp* TiCl3,as catalyst precursors in the presence of MAO.

合成了一种后过渡金属镍化合物 [二- N ，N′--2 ，3-丁二亚胺镍二溴化物 ][C10H7—NC(CH3)C(CH3)N—C10H7]NiBr2，此化合物在MAO活化下催化乙烯聚合能得到含有末端双键的低分子量聚乙烯，即长链α-烯烃。

PEG-PLA block copolymers were synthesized using polyethylene glycol and lac-tide in the presence of low toxic stannous octoate. The copolymer structure was determined by 13C NMR and the average block leng this were calculated.

本文报道聚乙二醇在辛酸亚锡存在下与丙交酯反应合成PEG-PLA嵌段共聚物，用~(13)C NMR测定了共聚物的结构，估算了平均链段长度。

When wheat seedlings were root-stressed osmotically in -0.5 MPa polyethylene glycol solutions in dark for 0,6,12,18,24,30,36,42,48 h,leaf total respiratory rate increased at first within the 0～12 h of stress but decreased afterwards.So were the changes of alternative pathway capacity,its actual operation activity and engagement.

小麦幼苗经-0.5 MPa聚乙二醇(PEG-6000)溶液暗中渗透胁迫0、6、12、18、24、30、36、42、48 h，叶片的总呼吸速率呈现先上升后降低的趋势，交替途径呼吸也表现出相同的变化模式。

Objective: To investigate the feasibility of swelling hydrogel instead of polyethylene oxide as swelling polymer in push-layer of push-pull osmotically controlled-release tablets.

中文摘要：目的：考察常用亲水膨胀材料替代聚氧乙烯作为推动层的膨胀推动剂用于制备推拉型渗透泵控释片的可行性。

Objective To investigate the effect of TNF-α in periprosthetic osteolysis induced by polyethylene particles.

目的 了解TNF-α在聚乙烯颗粒诱导假体周围骨溶解中的作用及其机理。

The most common reoperation was polyethylene exchange because of wear or osteolysis.

最常见的再手术原因为因磨损和骨溶解导致的聚乙烯衬垫的更换。

Wear of the polyethylene counterface results in osteolysis and impingement, both of which culminate in aseptic loosening.

聚乙烯界面磨损导致骨溶解和撞击综合症，最终发展为无菌性松动。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。