我们永远也不会知道这种计算能力是何时、如何发展起来的,但可以肯定的是,在人类形成半永久定居点的时候,这种计数法已经发展得很好了。
It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.
包括支持货币、科学计数法和百分比。
This includes support for currency, scientific notation, and percentages.
方法采用体外细胞培养计数法。
Methods: In vitro culture cell number count assay was adopted.
分数维的计算采用改进的盒子计数法。
The modified box-counting method is used in estimating fraction dimension.
方法:采用细胞计数法和图像分析法观察。
Methods: Using cell number count and image pattern analysis.
方法:应用细胞计数法和扫描电镜观察法。
METHODS:Methods of cell count and scanning electron-microscopy were used.
结果与常规平板计数法比较,差别无显著性。
Results There are no significant differences between the microcolony technique and the plate counting method.
用于单纱、股纱等进行直接计数法捻度测定。
Used for direct twist measurement of single yarn and plied yarn by counting.
用直接计数法进行抗原频率和基因频率计算。
The antigen frequency and gene frequency were calculated by direct counting.
血球板计数法显示了与MTT法相一致的结果。
扭矩和转速的测量可以采用计时法和数字计数法。
The measurement torsion and rotating speed can adopt time reckoning and the numeral count law.
方法应用免疫组织化学abc法、神经交点计数法。
Method Immunohistochemical ABC technique and counting number of nerve intersections were used.
计数法和计量法是对产品可靠性评估的两种不同方法。
Both attribute sampling plan and variable sampling plan are two different kinds of method for estimating their reliability of product.
目前,测定发酵液菌体浓度的方法有重量法、平板计数法。
At present, determining methods of the cell concentration in fermentation liquid contain gravimetric method and plate counting method.
应用细胞计数法观察vegf基因对内皮细胞生长的影响。
The role of VEGF gene transfer on HUVEC proliferation by cell-counting.
以稀释平板计数法,测定了臭氧对水体和空气环境的消毒杀菌作用。
The sterilization of ozone to water and atmosphere was determined by dilution method of plate counting.
用活细胞计数法求得各尺寸粒子的IC50,并绘制细胞生长抑制曲线。
The IC50 and growth-inhibitory curves of cells were assayed by cell counting.
设计了一种利用直接记录法(光子计数法)测量农药荧光寿命的测试系统。
A test system for fluorescence lifetimes of pesticides is designed by means of the direct record method (the Photon Counting Technique).
本文提出一种抗光源波动和外界干扰的条纹计数法光纤干涉型液位传感器。
An Optical fibre interference liquid level sensor with the ability of reducing the effects of light fluctuations and outside disturbances has been described.
人表皮细胞NHEK945增生采用MTT测定法和细胞计数仪直接计数法。
NHEK945 proliferation was assessed by MTT assay and direct cell count with a Coulter Counter.
方法采用体外细胞培养计数法,结果表明,该多糖对胃癌有显著性抑制作用。
Methods in vitro culture cell number count was adopted. Results AGP significantly inhibited the gastric cancer cell.
讨论了一种新型而且简单的门控光子计数法,用来测量高散射介质的光学参量。
A new and simple gated photon counting system is described for the recovery of optical parameters in diffusive media.
采用平皿菌落计数法、培养基稀释法、低速离心结合培养基稀释法进行方法验证。
Plate count method, method dilution method, low speed centrifugalization and dilution medium were taken the verification of methodology.
为了求一个数的常用对数,首先按照科学计数法把它写作小数点左面具有一位的数。
To find the common log of a number, we first write it in scientific notation with one figure to the left of the decimal point.
随后这位作者的其他著作的翻译本给我们带来了直到今天还在使用的十进制计数法。
Later translations of his books also gave us the decimal positional number system we use today.
二-十进制计数法(BCD)指的是占据一个单元组的十进制系统的二进制等价物。
Binary Coded decimal (BCD) refers to a binary equivalent of the decimal system which also occupies a nibble.
用液体闪烁计数法研究了细胞外钙调素对烟草悬浮培养细胞质蛋白质磷酸化的作用。
The effects of extracellular calmodulin on the activity of protein phosphorylation were studied in suspension-cultured tobacco cells.
利用平板计数法、扫描电镜等实验研究了海洋细菌在三种水性聚氨酯防污涂层上的附着。
The adhesion of Marine bacteria on three antifouling coatings based on waterborne polyurethane was studied by using scanning electron microscope and Bactoscan FC.
该自动计数法受不同微生物菌落形态、大小的影响不明显,但受琼脂倾注法接种的影响。
This automatic counting method was not influenced apparently by the morphology and size of the colonies of different microorganisms, but was influenced by AGAR pouring inoculation.
电子经纬仪是目前应用较为广泛的角度测量仪器,按其角度测量原理可分为增量计数法和绝对编码法。
At present electronic theodolite has been used widely in Angle measuring, according to the Angle measuring principle can be divided into incremental counting method and absolute coding method.
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