液氮

It is concluded that pulverize of tissue in liquid nitrogen remains the integrity of RNA isolated and may be applied for RNA isolation from human embryonic tissues.

液氮研磨方法可以应用於胚胎组织匀浆分离完整RNA，而不同引产方式对胚胎组织RNA质量并无直接的影响。

This paper analyzes the characteristics of quenching boiling of small and large samples in nitrogen.

分析了大小样品在液氮中的淬冷沸腾换热特性。

The work had been carried out can be summarized as follows: 1. Thermal cycle analysisBased on the classical thermodynamics, influence of isobaric reheat and isovolumetric reheat on cycle output is discussed. Based on the finite time thermodynamic theory, the thesis discusses the optimization of Rankine cycle, Brayton cycle and Stirling cycle between constant temperature heat source and constant temperature heat sink or between variable temperature heat source and constant temperature.

第一、循环优化分析：采用经典热力学研究了等压再热与等容再热对循环功的影响；采用有限时间热力学深入研究了恒温热源一恒温冷源和变温热源一恒温冷源液氮发动机朗肯循环、布雷顿循环和斯特林循环的优化和对比；着重研究了工质导热率与热机换热器总导热率之比对循环性能的影响、高温侧换热器导热率与低温侧换热器导热率之比对循环功率的影响等内容；得到了一些对循环和系统设计具有现实指导意义的结论。

At the temperature of liquid nitrogen the N 2 adsorption process and adsorptive volume of coal samples are measured under the gas saturated vapour pressure.Using BET and BJH theoretical models the pore volume and area of coal are calculated.

在液氮温度下，通过测试煤样在气体饱和蒸气压力范围内对N2 的吸附过程及吸附量，用BET和BJH理论模型计算出煤的孔体积和孔表面积。

psychology nurses interpose, liquid nitrogen is refrigerant treat wet wart of gestation vulva acuteness to have cure rate jointly with MEBO tall, recrudesce leads low, verrucous body to keep clear of the fast, heal that achieve a face does not leave reaction of fine of weak point of scleroma and scar, period of treatment, all without exception quickly to wait for an advantage, can use at pregnant woman.

结论心理护理干预、液氮冷冻和MEBO联合治疗妊娠期外阴尖锐湿疣具有治愈率高、复发率低、疣体清除快、创面愈合快不留硬结和瘢痕、疗程短、无不良反应等优点，可用于孕妇。

Growth of the snakehead cells was serum-dependent and plating efficiencies ranged from 22-29%.

在液氮中冻存4个月后95.9～96.6%的细胞仍有活力。

The 6 x 6 reservoir contains a sorbent that is charged prior to use with liquid nitrogen.

在缓慢释放冷却剂的过程中，吸附剂防止液氮泄漏和溅出。

Liquid nitrogen operative system and argon-helium operative system are representatives of two important stages of modern cryosurgery.

液氮冷冻系统和氩氦冷冻系统代表了冷冻治疗两个重要发展阶段。

A thermite reaction is initiated with some type of detonator and it can burn at temperatures of thousands of degrees.

铝热剂可以用雷管引燃会在几千度的温下燃烧。视频中试图用一桶液氮来冷却它。

The main methods to design current leads are thermodynamic analysis method and finite element analysis method.

指出液氮温区的电流引线将是发展的趋势之一，对它的研究应该引起我们的足够的重视。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新