查询词典 ionization current

The size and the chemical composition of an individual bioaerosol particle were detected in real-time by matrix-assisted laser desorption/ionization on the home-built aerosol time-of-flight mass spectrometer.

利用基质辅助激光解吸电离技术，在自行研制的气溶胶飞行时间质谱仪上实时探测单个生物气溶胶粒子的粒径和化学成分。

In order to make the uncertainty of the dose index measurement in the head phantom reasonable for the medical diagnostic X-ray radiation sources of the computed tomography, the measurement uncertainty components were analyzed according to the mathematical model for the computed tomography dose index test method with a 100 mm ionization chamber.

摘 要：为了使医用诊断计算机断层摄影装置X射线辐射源在模体中的剂量指数测量结果的不确定度评定合理，基于用带有100 mm长杆电离室的积分剂量仪测量CT剂量指数的数学模型，对其测量不确定度来源进行分析，列出了方差、灵敏系数及标准不确定度的计算公式，从而给出了CT剂量指数测量的合成标准不确定度和扩展不确定度。

Commonly,office with air-condition lacks of natural airiness,people breathe out CO2,the fog that is coursed by smoking,some office equipment.These things emante maleficence to bulk in the office.There are wet resorting in the air-condition system,this becomes the "dirt-hiding place".Computers,displays,hand-holding telephone and other electric equipments can produce certain amount of ionization radialization.Some building materials also release certain injurant.

带空调的办公室一般缺乏自然通风，人们呼出的二氧化碳、吸烟产生的烟雾、某些办公设备散发的有害气体积聚其中；空调系统里有水分滞留，成为某些细菌、霉菌病毒的&藏污纳垢&之地；电脑、显示器、手持电话及其他电子设备均产生一定剂量的电离辐射；有的建筑材料本身也释放某些有害物质。

In this respect, they violate the material law of ionization.

在这一点上，它们不受电离法则的约束。

At the same time, these two methods of accuracy and precision compared. It is to answer why the majority of the conductivity method used to measure the reasons for the ionization constant acetic acid.

同时对这两种方法的准确度和精确度进行了比较，也回答了为什么大多数用电导率法来测HAc电离常数的原因。

Electric conductivity method is one of the means which can be used to determine the ionization equilibrium constant of electrolyte solution.

离解平衡常数是研究电解质溶液性质的重要参数，在研究化学问题，如反应速率、化学活性、吸收等具有重要意义。

To replace the ionization constant of benzoic acid and esterification rate constant, and many others between the kinetic parameters can be observed that the same relationship that substituent effect in a reaction and another reaction to a certain degree of correlation between.

在取代的苯甲酸的电离常数和酯化速率常数以及其他许多有关的动力学参数之间，可观察到同样的关系，即取代基效应在一个反应和另一个反应之间有一定的关联性。

The ionization equilibrium constant of CH3OOH at 298K is determined in this paper.

其中电导法测弱电解质的离解平衡常数具有实验过程简单、实验结果准确等特

The ionization constant of aesculetin was determined to be pKa1= 5.31 by UV absorption method.

通过吸光光度法测得秦皮乙素的一级解离常数pKa1=5.31。

A relative formula was nrived between the ionization equilibrium constant and the chnarge density on that oxygen of hydroxide radical, and then the pH values of the colour ranges of these indicators was calculated with satisfaction.

提出了此系列指示剂的电离平衡常数和羟基中氧上的电荷密度的关系式，计算了这类指示剂的变色pH范围。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。