平均值

An improved purification procedure for satsuma dwarf viruswithout sucrose density-gradient centrifugation was developed,by whichglobular SDV particles about 25 nm in diameted were observed with elec-tron microscopy,using only 100-200 g of Physalis floridana-infectedleaves as the virus source.

本文提出的温州蜜柑萎缩病毒提纯法，仅用100～200克病洋酸浆叶，且无需通过蔗糖密度梯度离心，在电镜下亦能看到中量直径约25nm 的球状病毒颗粒，粗提纯制剂OD_(860)/OD_(280)平均值为1.28，OD_(260)/OD_(240)平均值为1.15，初步显示出SDV 特征性紫外吸收曲线，提纯病毒产量约为4.5～11mg/kg病叶。

C Severity of psychophysiological symptoms were significantly higher than the patients without psychiatric symptoms.

身心症状之严重度（标准化平均值1.24）在统计上显著高於在过去的研究中无精神症状病人的身心症状（标准化平均值0.39）。

The SD of the mean for 32 smooth nodules was 7.7%(95%confidence limits,±15.1%),12 irregular or spiculated was 3.3%(95%confidence limits,±6.5%).

32个边缘光滑肺结节的体积平均值的SD为7.7%(95%可信区间，±15.1%)，12个边缘不规则或针尖样肺结节的体积平均值的SD为3.3%(95%可信区间，±6.5%)。

And DO level only at 2.9 mg/L in walking catfish's grow-up ponds. The chlorophyll a in sweetfish pond and walking catfish pond were 3.43 and 170.43 mg/ m3, respectively.

香鱼养殖池的溶氧都在5 mg/L以上，胡鲇养殖池溶氧平均值为2.9 mg/L，两个养殖池的叶绿素a平均值分别为3.43和170.23 mg/ m3。

Finally, through FORMOSAT-II imagery analysis of Swietenia macrophylla pure stand, we could calculate NDVI value in different seasons. The NDVI value in summer was highest than other seasons.

在卫星影像所推估之桃花心木纯林各季之NDVI值，以夏季NDVI为最高，平均值为0.5902，冬季时NDVI值较低，平均值为0.3139，且不同季节间之NDVI值皆达到显著差异。

Measure the width and length at three points on two ends and middle part of membrane by tapeline with an minimum scale of1mm, then calculate the area per roll membrane by multiplying mean length with mean width.

5.3 尺寸偏差Dimensional deviation 5.3.1 用最小分度值为1mm 的卷尺在卷材两端和中部三处测量宽度、长度，以长度的平均值乘以宽度的平均值得到每卷卷材的面积。

A new trick using Trichogramma brassicae asvectors to transmit Dendrolimus punctatus cypovirus was developed (called"Biological missiles Dp-Ⅰ") to control the Dendrolimus punctatus in the field. Sincethen, we collect the single caterpillar from both areas used Dp-Ⅰand controlled areasevery year, and A nested-PCR-based assay for the detection of those samples wasdeveloped, The results showed that the positive reaction rate of the first year is 40～70％; and second year is 30～80％, on the other hand, the positive reaction rate of thecontrolled areas are 10～40％and 10～20％.

第二章对马尾松毛虫质型多角体病毒的流行病做了初步的调查，应用巢式RT-PCR方法检测从野外释放&生物导弹Dp-Ⅰ&的林区采集马尾松毛虫单虫样本，结果发现：2006年释放&生物导弹Dp-Ⅰ&的王福店林区的松毛虫体内DpCPV阳性率为40～70％，平均阳性率为58％，相应对照区的阳性率为10～40％，平均阳性率为24％；2005年释放&生物导弹Dp-Ⅰ&的丁家畈林区松毛虫体内DpCPV阳性率为30～80％，平均值也为58％，相应对照区的阳性率为10～20％，平均值为16％。

The distance of coded points or uncoded points was calculated with several groups of photographs taken by a camera with software XJTUDP, and then their average value was acquired.

通过相机拍摄多组照片，在XJTUDP软件下计算相同条件的编码点或非编码点之间的距离，得出其平均值，将测得的每组单个数值减去平均值，可获得每次测量的个体误差。

The relationship between the tracking error and those auxiliary errors is clearly established when plant relative degree is greater than one and therefore, it can be proved that the influence of averaging filters on a VS-MRAC system can be considered as, in a sense, an unmodelled dynamics. As a result of this, it is shown that the stability analysis of a signal synthesis based VS-MRAC system must be modified to include the 'unmodelled dynamics'.

当对象建模部分相对阶大于1时，得到了系统跟踪误差和辅助误差间明确的关系表达式，进而证明平均值滤波器对系统的影响相当于未建模动态对系统的影响，这表明以往相关文献关于系统稳定性的分析是有缺陷的，没有将平均值滤波器对系统稳定性的影响完全考虑在内； 3。

The operation result of UASB combined with A-SOMBR treating leachate:when volumetrical loading rates were in the range of 0.76-1.61kgCOD/(m3·d), the average removal of COD was 82.66% and the average value of COD in effluent was 188.46mg/L;When volumetrical loading rates in range of 0.058-0.23kgNH3-N/(m3·d),the removal of NH3-N was 88.22% and NH3-N concentration declined to 27.02mg/L.

UASB+A-SOMBR组合工艺处理垃圾渗滤液的研究结果表明：在容积负荷0.76-1.61kgCOD/(m3·d)内，A-SOMBR对COD平均去除率为82.66%，出水COD平均值为188.46mg/L；在容积负荷0.058-0.23kgNH3-N/(m3·d)范围内，A-SOMBR对于UASB产水中氨氮平均去除率88.22%、出水氨氮平均值为27.02mg/L。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷