l在过程和步骤已经确定的给定系统中，一阶变化是个变异，它使系统本身相对的不变。
First-order change is a variation in the way processes and procedures have been done in a given system, leaving the system itself relatively unchanged.
分析规程的精密度通常以一系列测量数值的标准差或相对标准差(变异系数)来表示。
The precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
蛋白质与脂肪含量变异都较小的品种大多为种植在相对来说不适宜脂肪含量形成区域的早熟品种。
The variety that is less variation of the protein and fatty content mostly is plant relative do not suit fatty content to form and the early-maturing area.
血浆中egfr外显子19删除患者的中位生存期要明显好于那些存在L 858r变异患者(32个月相对14个月)。
Median survival time for patients with an EGFR exon 19 deletion in serum was also substantially higher than in those with L858R mutations (32 months vs 14 months).
高产水稻株系的抽穗前物质生产量、抽穗后物质生产量、生物产量以及经济系数均较高且变异系数相对较小。
Biomass production in the entire growth period, dry matter accumulated before and after heading stage, economic coefficient in high-yield rice were higher and their deviations were relatively narrow.
由于过去人们对习语变体的相关研究大多停留在变异类型的划分归类上，因而相对忽视了对它们的功能研究。
Since much past work related to idiom variations is only concerned with some broad categorization of different types of variations, their functions are relatively neglected.
第一阶模态振型相对均值系统的变化很小。一般地，结构参数的随机变异对模态振型均值的影响大于对模态频率、模态阻尼比均值的影响。
In general, the variation of structure parameters has more effect on the mean values of mode than those of modal frequencies and modal damping ratios.
当聚合物的相对分子质量及其分布宽度相同时，随着岩心渗透率变异因数的增大，其聚合物驱采收率也随之增加。
When polymer relative molecular mass and its distribution width are the same, the polymer displacement efficiency increases with the increment of the core permeability variation factor.
本文建议在计算d时根据各个IPCA对变异的相对贡献大小对品种在各IPCA轴上的得分进行加权。
In this paper, it is suggested that in the calculation of d, a variety's score on each IPCA be weighted according to the relative contribution of the IPCA to the variation.
本文就不同条件下烯醇式的互变异构的相对含量作一分析。
The relative content of enol form on the different condition is analysed in this paper.
结果表明：（1）油松针叶萜类相对含量以随机变异为主；
The results indicated that: (1 ) the geographical variations of relative contents of most foliar terpenes are irregular;
基于标准差和变异系数两个指标，采用聚类分析，可将土壤剖面水分垂直变化划分为四个层次：速变层、活跃层、次活跃层和相对稳定层。
Based on the standard deviation and variation coefficient, soil water change in the profile could be divided into four layers by cluster analysis.
相同条件下多次采集的数据变异系数<4%，说明该系统操作具有可重复性；检测结果最大相对误差为4.4%，满足微量组分检测的准确度要求。
Using this system, the chroma values of ten samples can be obtained once and the variable coefficients are lower than 4% and the maximum of relative errors is 4.4%.
史密斯桉种源试验结果表明：树高、胸径、材积种源间变异相对较小，而种源内个体间的变异较为丰富。
The provenance experiment on Eucalyptus smithii shows that height, DBH, volume have little variation in provenance, and great variation in individuals.
不同品种梨汁中果糖、葡萄糖及总可溶性糖含量变异较小，相对稳定，果糖与葡萄糖、总可溶性糖之间表现出显著的相关性；
The contents of fructose, glucose and whole soluble sugars were steady in peer juice, and there were notable correlation between fructose and glucose, fructose and whole soluble sugar.
确定了互变异构体及过渡态的几何构型、相对能量和活化能。
The geometries, relative energies, and activation energy of the tautomer and transition state were determined.
进而着力指出花儿在现代社会出现的变异和生存危机、以及花儿研究的相对局限和滞后。
Then the writer points out Huaer's evolution and survival crisis in modern society and the limitations and hysteresis of its research.
比较语音变异而言，语法变异研究相对薄弱。
Compared with the research on phonetic variation, the research on grammatical variation is weaker.
双拱的静力三分力系数、变异性以及受湍流度的影响等均与两拱间距宽度比及竖向相对位移有关。
Arch forces coefficients and fluctuating buffeting forces are mainly decided by the space width ratio and the relatively vertical displacement.
年降水量变异系数随海拔的升高而减小，即海拔越高的区域降水量的年际间波动相对越小。
Annual precipitation variation coefficient was smaller in higher altitude mountain than in lower altitude areas and plain in Urumqi river basin.
在各构件物质分配变异系数中，花生物量分配的变异系数相对较大，说明其调节生殖分配的能力较强；
The variation coefficient of biomass ratio was higher in flower than in other organs, which showed that this weed had high ability to adjusting reproduction allocation.
研究人员把他们发现差异的基因和其他相对寿命较短的德系犹太人家庭成员的基因做对比，但是观察小组研究员却没有发现任何一个出现过变异的基因。
The researchers compared the findings to other Ashkenazi Jews whose family members did not live as long. In the control group, they say, no one had the mutations.
其快速的变异表明，存在通过一个同步加速过程发挥作用的超相对论电子，它们是X-射线的可能来源。
The rapid variability points to ultrarelativistic electrons acting via a synchrotron process as the probable X-ray source.
结果：（1）正常肝容积值变异较大，正常肝与肝硬化肝之间肝容积相对值较绝对值差异更有统计学意义。
RESULTS (1) Liver volumes of 50 subjects in the normal control group varied greatly, and thereby the relative values were more significant statistically than absolute values.
那些在151位半胱氨酸变异的女性增加了5%的黑色素瘤风险，其为最致命的皮肤癌。相对的，鳞状上皮细胞皮肤癌和基室细胞癌的患病风险相对增加了67%和56%。
Women with the 151cys variant had a 65 per cent increased risk of melanoma, the most deadly type of skin cancer, while their risk of SCC and BCC were 67 per cent and 56 per cent greater, respectively.
那些在151位半胱氨酸变异的女性增加了5%的黑色素瘤风险，其为最致命的皮肤癌。相对的，鳞状上皮细胞皮肤癌和基室细胞癌的患病风险相对增加了67%和56%。
Women with the 151cys variant had a 65 per cent increased risk of melanoma, the most deadly type of skin cancer, while their risk of SCC and BCC were 67 per cent and 56 per cent greater, respectively.
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