查询词典 Pet.

Results:Among 98 patients at presentation,the sensitivities of FDG-PET and CT were 73% and 70%,respectively (P.01) in detecting lymphopathy,and 87% and 45%,respectively (P.01) in detecting extranodal lymphoma .

治疗后81例104处病灶，FDG-PET敏感性和特异性分别为81%和68%；CT的敏感性和特异性分别为55%和33%，FDG-PET的敏感性和特异性高于CT(P.01)。

PET POY 125 dtex/96 f,used for weaving,is produced by double-spinning technology on NOY PET-POY line.Through the improvement of spinning temprature,winding speed,cooling condition etc.,the problems such as too much fuzz in grey yarn,many differences of boiling shrinkage,unsteady of dyeing behaviour are settled.The product quality is good,the requirement of consumer is satisfied.

采用双头纺生产技术，在NOY公司PET POY线生产直接用于织造 12 5dtex/ 96f涤纶POY ，通过纺丝温度、卷绕速度和冷却条件等方面的优化，解决了原丝毛丝多、沸水收缩率差异大、染色性能不稳定的问题，产品质量良好，满足后道织造用户要求。

The easy hydrolytic degradation polyester was synthesized in the batch reaction vessel of 6 m 3. Hydrolytical properties of EHDPET can be controlled at will by selecting suitable hydrolytic conditions. By spinning EHDPET and PET (or PA6) in the mass ratio of 15~25/85~75 on Hills bicomponent spinning equipment, sea\|island bicomponent fibers which have good physicomechanical properties and processing performance were obtained.

在6m3 间歇式反应装置上合成了易水解聚酯，选择适宜条件，EHDPET 的水解性能可以得到随意控制，将合成的EHDPET 与PET以 15～25／85～75 质量比在 Hills 双组分复合纺丝机上进行复合纺丝，得到以EHDPET为海组分，以PET（或PA6）为岛组分的海－岛型复合纤维；该复合纤维物理性能良好，用该复合纤维织造的机织物和针织物，其纺织加工性能均良好。

The influence of chain extender kind, content and reactive processing condition on molecular weight (averageM(subscript η) of recycled PET was studied carefully based on chain extenders of 2, 2'-Bis(2-oxazoline), Pyromellitic dianhydride and the mixture of the both during reactive extrusion processing.

分别使用双恶唑啉、均苯四酐及两者的混合物作为回收PET瓶的扩链剂，研究扩链剂的种类、扩链剂用量和反应挤出机加工工艺条件对PET产品相对分子质量

copper pyruvaldehyde bis（n -methylthiosemicarbazone） complex, or cu-ptsm, belonging to a class of neutral, lipophilic complexes ,is a positron emission tomography radiopharmaceutical that can be used to evaluate blood flow in the heart, brain, and tumors without following any side effect .cu-ptsm has been demonstrated the ability of rapid diffusion into cells.also because it can be synthesized,it is a potential tracer for pet imaging.

作者单位：610041 四川成都，四川大学华西医院核医学科 cu-ptsm是一种中性亲脂性复合物，用于pet显像的放射性药物。由于该制剂很容易扩散到细胞内，因此注射cu-ptsm后可以了解心、脑和肿瘤部位的血流灌注状况，它不伴有副反应的发生，且合成比较容易，所以是一种非常有前途的新型pet显像剂。

A complete bovine 18ku-bFGF gene was cloned by nested-PCR and subcloned into expression vector pET-28a.The recombinant plasmid pET-28a-bFGF was transformed into Escherichia coli BL21.At 25℃,recombinant protein was induced by 0.5mmol/L IPTG for 5 hours.Supernatant of cell lysate was purified using Ni-NTA method and the products was submitted to detect the bioactivity by Western-blotting,which indicated that the fusion protein contained recombinant bovine bFGF.Results showed that recombinant bovine bFGF was produced and solubly existed in the supernatant.NIH-3T3 fibroblasts were used to detect the bioactivity of the fusion protein.

采用巢式PCR方法克隆了牛18ku-bFGF基因完整的编码序列，并构建了原核表达载体pET-28a-bFGF，将其转化大肠杆菌BL21，在25℃低温条件下，用0.5mmol/L IPTG诱导表达5h，用Ni-NTA亲和纯化细胞裂解上清液，经Western-blotting检测，结果显示，在特定的诱导条件下，重组牛bFGF基因在大肠杆菌中获得了表达，并且主要以可溶性状态存在于细胞中。

Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane ,trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

Preparation of trifluoroacetaldehyde and trifluoroacetic acid by trifluoroethanol catalytic oxidation;2. Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane, trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

When TA or Diethylene glycol terephthalate were applied to common metabolism, F4 and p.ch were used to degrade uncrystalline Polyethylene terephthalate film, which was prepared by resolving PET fiber with organic solvent, at temperature of 30℃, shaking frequency 140 r/min in HZQ-C air bath oscillator from one month to three months, and then the scanning electron microscope was applied to observe faces of PET film.

在菌株最佳生长条件下，分别以TA和DTP作为共同代谢基质，研究F4和p.ch菌株降解PET膜。

As compared with undrawn PET film, the hot drawn PET film showed shorter crystallization induction period, faster development of long period, anisotropic in SAXS and WAXD patterns, with considerable thermal contraction along the direction of drawing and small lengthening in the direction of drawing during crystallization.

研究结果表明：热拉PET膜的结晶诱导期较短，长周期发展得较快，结晶后小角X-线散射表现出明显的各向异性，在热处理过程中先出现显著的热收缩，随后又表现出结晶伸长现象，这些都和未拉试样有明显的差别。

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。