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The transesterification reaction among poly,poly(ethylene 2,6- naphthalate),and PET／PEN copolymer were studied with1H-NMR.

通过用1H-NMR对聚对苯二甲酸乙二酯与聚2，6-萘甲酸乙二酯、PET/PEN共聚物的共混物酯交换反应的研究，测得了反应速率常数、反应活化能和诱导期。

We do a lot of nonstock, custom bottle designs and often have to come up with special colorant blends to meet specific needs, including unique colors for virgin PET containers of other McCormick brands.

我们做了很多nonstock ，定制设计和瓶子常常拿出特殊着色剂混合，以满足特定需求，包括独特的颜色，美属维尔京PET容器其他麦考密克会展中心的品牌。

Engineered pET-ompA3-hGH/BL21(DE3) expressed secretion rhGH by inducing and supplying nutrimental components in 5 L fermentor.

在5L发酵罐中将工程菌pET-ompA_3-hGH／BL21(DE3)进行补料式发酵，诱导表达分泌型重组人生长激素。

The results showed that concentration of pentaerythritol and polymerization time play a key role on molecular weight of PET-PLLA.

结果表明，醇的加入量和聚合时间对PET-PLLA分子量大小起决定性作用。

Poly/montmorillonite/2-Carboxyethyl phosphinic acid (PET/MMT/CEPP) nanocomposites were prepared through direct-esterification process by adding reactive flame retardant before esterification, and organic MMT was added before polycondensation.

采用直接酯化法，将共聚型阻燃剂羧乙基苯基次磷酸和对苯二甲酸以及乙二醇混合后酯化，在酯化产物中加入经过有机改性的蒙脱土，缩聚制备了阻燃聚酯／蒙脱土纳米复合材料(PET/MMT/CEPP)。

18F-FDG PET/CT has higher sensitivity and specificity in the preoperation staging of esophageal carcinoma, and has better clinical perspective.

应用18F-FDG PET/CT进行食管癌检查能显著提高分期的敏感性和准确性，具有较好的临床应用前景。

Also, the sample of motiated, highly educated, physically healthy olunteers concerned about age-related memory problems could hae resulted in higher alues for FDDNP-PET binding, and concern about memory problems could hae been a subtle sign of presymptomatic disease in some of the controls.

另外，在较为关注年龄相关记忆问题的主动的、高学历、身体健康的志愿者中，可能产生FDDNP-PET的较大值，在对照组中某些人当中，对记忆问题的关注可能是疾病发生前症状的一个敏锐标志。

The practice showed that the new theory can describ and predict the mechanical relaxations of PET/PHB copolyesters successfully, and previde the useful imformation for the structure analysis of the copolyester as well.

实践表明，新的唯象理论不但能成功地描述和估算PET/PHB共聚酯的力学松弛行为，还能为共聚酯的结构分析提供有用的信息。

South Asia has imported, or domestic Huaxiang deep plastic card-PVC, PET, PP, PS, such as transparent or colored film, flocking film, cold tablets, conductive films, anti-static films,or Prodenia films, two-tone gold and so on.

有进口的南亚、华翔或国产深塑牌-PVC、PET、PP、PS等透明或有色胶片、植绒胶片、耐寒片、导电片、防静电片、磨沙或斜纹片、双色金片等。

From Switzerland, the introduction of processing 100 tons of concentrated fruit juice production line (of which 10,000 bottles / hour PET former fruit and vegetable processing system include: hot water system, the system of sugar, Protoplasmic systems, deployment systems, disinfection system, CIP system, electricity Control control, engineering materials and installation of advanced equipment).

有从瑞士引进日加工鲜果100吨浓缩果汁生产线一条（其中10000瓶/小时PET果蔬汁前处理系统包括：热水系统、化糖系统、原浆系统、调配系统、杀菌系统、CIP系统、电控控制、工程材料、安装等国内外先进设备）。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。