转换数

词组短语

turnover number

与转换数相关的网络例句 [注：此内容来源于网络，仅供参考]

Our research showed that the genetic variation of raptors and nighthawks was abundant and that the number of transitions and transversions in 12S rRNA and 16S rRNA genes increased gradually with p-distance and appeared not to be saturated, which indicated the phylogenetic relationship made in this study was really reflected.

所采用的12S rRNA和16S rRNA基因变异丰富，研究表明该基因的转换数和颠换数随着遗传距离的增加呈稳定性增长，未出现饱和现象；因此该基因数据能够提供有效的遗传变异信息，反映出较高真实水平的鸟类系统发育关系。

To keep away from digital distortion caused by analog conversion,"Boutique Recording" applies APOGEE Analog to Digital Converter System in pre-recording, adopts Hi-End Prism Sound Digital to Analog Converter System during post mix and master disposal processes. In a word,"Boutique Recording" minimizes the distortion rate, and maintains the unique spirit of analog music.

为避免后期缩混时过多数字设备所造成的数码味，录音师坚持在前期录音与母带处理过程中使用传奇的模拟设备，在现场录音的同时进行立体声混音工作，为了避免模数转换时所造成的数字失真，达人艺典在前期录音中采用APOGEE模数转换系统，后期缩混及母带制作采用顶级HI-END厂牌Prism Sound数模转换系统，将失真率减到最低，保持独有的模拟音乐味道。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

You can convert dozens or even hundreds of images from one format to another in a snap.

您可以转换数十甚至数百图像从一个格式到另一个在一个管理单元。

Computers need numerical value change between binary system,octal system and decimal system The fortran77 is used in the programming to perform the numerical value converting.

计算机需要数制转换，计算机内部使用二进制，二进制八进制十进制之间的数制转换，FORTRAN77编制，围绕二进制与小数，解决二进制八进制十进制之间的数制转换 2。

Computers need numerical value change between binary system ,octal system and decimal system The fortran77 is used in the programming to perform the numerical value converting.

计算机需要数制转换，计算机内部使用二进制，二进制八进制十进制之间的数制转换，FORTRAN77编制，围绕二进制与小数，完成二进制八进制十进制之间的数制转换

However, the transformation rate from dominant stem to overtopped stem and from overtopped stem to dominant stem were the lowest. The interconversion of classified stem would increase as the stand density and the rate of L. gmelinii was going up. The altitude that classified stem mainly concentrated was less than 1000m, slope was less than 25°, aspect was south slope, position was at middle and lower, soil depth less than 17cm. The rate of no interconversion was 66.7% among overtopped stem. It should cut the overtopped stem as intermediate cutting.

优势木转被压木和被压木转优势木的转换率最低；随着林分密度和林分中落叶松比例增加，分级木相互转换数也增多；分级木转换现象主要集中在海拔＜1000m、坡度＜25°、坡向为阳坡、坡位为中下、土壤厚度＞17cm的林分中；被压木中，无转换的占66.7%，抚育采伐时应考虑伐除这些被压木。

The method comprises the steps of: constructing a testing system which inputs digital codes and outputs simulated values of the analog-digital converter; obtaining a comparison table which is output through inputting responded simulated values of different digital codes from 0 to 2N-1 of the analog-digital converter; calculating to obtain an integration non-linear error comparison table corresponding to different digital code input of the analog-digital converter; compensating integration non-linear errors of the analog-digital converter through a hardware compensating method of adding a subtracter; and obtaining accurate analog-digital converter output.

搭建数模转换器的数字码输入-模拟值输出的测试系统；获得数模转换器从0到2 N -1的不同数字码输入响应的模拟值输出的对照表；计算得到数模转换器相应于不同数字码输入的积分非线性误差的对照表；通过加入减法器的硬件补偿方法，补偿数模转换器的积分非线性误差，获得准确的数模转换器输出。

Although only 246bp sequenced in domain I, transition,transversion and percentage of divergence are higher than domain III.

灰雁和鸿雁mtDNA控制区序列转换数远大于颠换数，表明家鹅线粒体控制区序列在种间、控制区区域间表现出不同的变异模式。

The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.

碱基含量分析可知，序列的G C含量(49.3％)＜A T含量(50.7％)，密码子第三位点的G、T含量都有较强的偏倚性；序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次)，C→A、T→G颠换数均为2次，其余颠换模式均未发生；转换数明显高于颠换数，Ts／Tv=9.5～19，密码子第三位点的转换数最高，呈现了相当强烈的转换偏倚性；密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239，表明密码子第一位点的替换速率变异最大，第二位点次之，第三位点的替换速率变异相对较小；编码同一氨基酸的同义密码子并非随机使用，表现出一定程度的使用偏倚性；同义替换速率和非同义替换速率分别为0.0787和0.0011，dS与dN值间的差异极显著(Z=4.713，p＜0.01)，而ω=0.0284，明显小于0.3，表明雁属鹅细胞色素b基因序列经历了中度净化选择作用；单步非同义替换(Sing-step nonsymonymous codon substitution，SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同；构建的最大简约树与邻接树拓扑结构一致，支持中国家鹅的双起源学说，即除伊犁鹅外的其它中国鹅品种起源于鸿雁，伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。

与转换数相关的网络解释 [注：此内容来源于网络，仅供参考]

analogue-digital converter;A/D converter：模-数转换器;A/D转换器

analogue signal,模拟试验 | analogue-digital converter;A/D converter,模-数转换器;A/D转换器 | analogue-to-digital conversion,模/数转[变]换

analog to digital：模拟/数字转换,模数转换

Analog Systems Analog 系统 company | analog to digital 模拟/数字转换,模数转换 A/D | analog-digital integrating translator 模拟数字集中转换器 ADIT

analog-to-digital converter：模拟 数字转换器模数转换器

analog switch 模拟开关 | analog to digital converter 模拟数字转换器模数转换器 | analogue 模拟的

analogue-to-digital conversion：模数转换;仿真数字转换

模塑;倒模成形;铸模成形 moulding | 模数转换;仿真数字转换 analogue-to-digital conversion | 仿真 simulation

analog-to-digital conversion rate：模-数转换速度

analog-to-digital conversion accuracy,模-数转换精确度 | analog-to-digital conversion rate,模-数转换速度 | analogue computer,模拟计算单元

analog-to-digital conversion rate：模-数转换速率

analog-to-digital conversion accuracy 模-数转换准确度 | analog-to-digital conversion rate 模-数转换速率 | analogue computer 摹拟计较单位

digital-to-analogue conversion：数字仿真转换;数模转换

数字及字母冲 number and letter punch | 数字仿真转换;数模转换 digital-to-analogue conversion | 数码化仪器;数字式仪器 digital instrument

month：将系列数转换为月

MINUTE 将系列数转换为分钟 | MONTH 将系列数转换为月 | NETWORKDAYS 返回两个日期之间的完整工作日数

Nan：非数

本标准规定:1)基本和扩充的浮点数格式;2)加、减、乘、除、开平方、求余数以及比较运算;3)整数与浮点数之间的转换;4)不同浮点格式之间的转换;5)基本格式浮点数与十进制数串之间的转换;6)浮点异常及其处理,包括非数(NaN)的处理.

ADC-SYNC Analog to Digital Converter Synchronous：模数转换器电平同步信号

ADC-P Analog to Digital Converter Positive 模数转换器正端. | ADC-SYNC Analog to Digital Converter Synchronous 模数转换器电平同步信号 | ADC Analog to Digital Converter 模数转换器.