正电的例句大全

Scatter coincident events are the important factor that affects the quality of positron emission tomography ( PET ) images.

散射事件是影响正电子发射断层扫描术 ( Positronemissiontomography,PET ) 图像重建质量的一个重要因素.

Cathode rays are attracted by a positive charge.

阴极射线被正电荷所吸引.

Intravenous hydration therapy is instituted to correct electrolyte imbalances, in addition to providing hydration.

除了补充液体外,静脉补液也可以纠正电解质紊乱.

The properties of filtrate reducer used in MMH drilling fluid are evaluated.

介绍了一种与正电胶钻井液配伍的降滤失剂,分析了它的反应机理,并对该产品的性能进行了评价.

The positrons are generated will move around in the material.

这些正电子将沿着材料周围运动.

Positron emission tomography ( PET ) is a non-invasive method to detect the distribution of radionuclide in vivo.

正电子 发射体层摄影术是一种无创性的探测生理性放射性核素在机体内分布的断层显像技术.

How few cancer cells can be detected positron emission tomography?

正电子发射断层摄影怎样探测少量癌症细胞?

These new tests are resonance imaging ( MRI ) and positron emission tomography ( PET ) scanning of the heart.

这两个检查项目分别称为核磁共振 ( MRI ) 和正电子发射断层显像 ( PET ) .

Molecular imaging with positron emission tomography ( PET ) is an important field of molecular imaging.

正电子发射断层 ( PET ) 分子影像学是分子影像学的重要内容.

Positron emission tomography ( PET ) is an imaging technique that combines a radioactive tracer with a molecule.

正电子发射断层成像 ( PET ) 是一种结合单一分子放射示踪的成像技术.

The Harvard group use positron emission tomography ( PET ) scans to monitor the brain activity.

哈佛大学的研究组运用正电子发射X射线 层析照相术 ( PET ) 监测大脑的活动.

Magnetized water samples were measured by the positron annihilation lifetime spectrometer.

用正电子湮没寿命谱仪对经过磁场处理的水样品进行了对照测量.

This was confirmed by the positron annihilation technique.

正电子湮没技术证实了这种空位的存在.

There is an inward flow of positive charges.

正电荷朝里流动。

The increase mechanism of dislocation and micro-voids in deep drawing sheet steel during forming paths of uniaxial tension, plane strain and equal biaxial stretch was studied by using positron annihilation lifetime method.

本文应用正电子寿命法研究了深冲钢板在单向拉伸、平面应变和等双向拉伸变形过程中的位错和微空洞增长机制。

The CPPs are polypeptide segments of various lengths carrying positive charge, rich in such alkaline amino acid residues as arginine, lysine and so on.

这些细胞穿膜肽均为带有正电荷的长短不等的多肽片段，其中富含精氨酸、赖氨酸等碱性氨基酸残基。

In 1977, Vives et al found in the HIV-TAT, there was a close correlation between an abundant alkaline amino acids, segments of polypeptides carrying positive charge and protein transducing function.

1997年，Vives等发现HIV-TAT中一个富含碱性氨基酸、带正电荷的多肽片断与蛋白转导功能密切相关天然存在的CPPs。

The organic BPG and the polymer were used to prevent the formation from mud making, and to improve shearing-thinning ability of the fluid;

用有机黑色正电胶和聚合物控制地层造浆，提高钻井液的剪切稀释能力；

The organic black positive gel ( BPG) drilling fluid was employed, combined with pipe-sticking prevention by solid and liquid lubricants and hole stabilization technologies.

采用有机黑色正电胶钻井液，并配合固体、液体润滑剂防卡和岩屑床控制以及井壁稳定技术，满足了高难度定向井的钻井施工要求。

In our theoretical approach, the relaxation mechanism of the quasi-positronium ( qPs) in alkali halides has been studied.

理论上研究了碱卤晶体中准正电子偶素（qPs）的弛豫机制。