差减法

同时，在分析测定酸的重量百分浓度时，利用差减法得到了H＋的准确含量。

The subtraction method was used to get the precise content of H + of HOAc .

以APDCMIBK为萃取体系，在pH为4.5的缓冲溶液中萃取测定铬（Ⅵ），以差减法求铬（Ⅲ）。

Cr (ⅵ) was extracted and measured from pH4.5 buffer solution with APDC_MIBK extraction system . Cr (ⅲ) was calculated by subtraction method .

误差与不确定度以差减法求得As（V）含量。

Error and uncertainty As ( V ) was evaluated by difference .

以差减法求得As（V）含量。

As ( V ) was evaluated by difference .

以差减法求得As（V）含量。差减法得Sb（Ⅴ）。

As ( V ) was evaluated by difference . The content of Sb (ⅴ) is found by difference .

ICP-AES等效浓度差减法测定铂网中的钯铑及杂质元素

Determination of Palladium and Rhodium and Impurities in Platinum Gauze by ICP-AES Minus Equivalent Concentration Method

方法对门诊的阴道炎患者，采用特制密封棉拭子宫颈管内取样，然后采用重量差减法，求出分泌物的重量，采用荧光定量PCR测定解脲脲原体。

Method : We use sealed cotton swab to sample in cervix . We get the weight of secretion by differential subtract method then to detect the Uu by FQ-PCR .

EDTA差减法准确测定铜盐中铜含量方法的研究

A study on the accurate method of determining the copper content in salt of copper by the EDTA in the minus way

研究了采用EDTA差减法测定铜盐中铜含量的方法。

The study deals with the accurate method of determining the copper content in salt of copper by the EDTA in the minus way .

用EDTA容量法测定锌和镍的总量，用差减法计算锌的质量浓度；

Total quantifies of zinc and nickel are determined with EDTA volumetry , from the total quantities minus the nickel concentration we obtain the zinc concentration .

而对于进口火电机组的质量验收和考核，建议采用本文中的直接测量法（DDM法）或间接差减法（IDM法）。

It is proposed by the peper that more accurate methods ( IDM or DDM ) should be used in stead of LOI in quality inspection and acceptance test of imported generating units .

用紫外吸收变温光谱差减法获得化合物的紫外吸收温差光谱（UVSDT）。

The paper states a measuring method about Ultraviolet absorption spectrum from difference in temperature ( UVSDT ) .

另一份试液在pH1.0～1.5使锑离子水解与干扰离子分离，测定总锑量，用差减法求出Sb（Ⅴ）含量。

The other is used for the determination of total Sb amount by selective hydrolysis of Sb at pH 1.0-1.5 to separate Sb from foreign ions . The amount of Sb (ⅴ) is calculated by deduction .

利用差减法评判烘烤对烟叶质量的贡献率

Evaluation on the Contribution Rate of Curing to Leaf Quality of Tobacco by the Means of Minus

本文还介绍了特别适用于该法与微分脉冲相结合的两种实验技术即差减法与改换介质法。

Two experimental techniques in conjunction with differential pulse voltammetry especially suitable to such a voltammetry are recommended .

地力差减法在黄粘泥土玉米推荐施肥中的应用研究

Application of Dissimilar Subtraction Method of Soil Fertility in Recommend Fertilizer Practice for Maize Planting in Yellow Clay Soil

参照溶液差减法所得吸附等温线，估算出压电石英晶体的实际表面积为其几何面积的3.77倍。

Using the adsorption isotherm in solution depletion method as the reference , the surface area of the quartz crystal disc were estimated to be 3.77 time of its geometric area .

差减法和直接法测定菜籽饼粕氨基酸猪回肠表观消化率的比较研究反刍动物日粮中桑叶与饼粕类饲料间的组合效应

DETERMINATION OF APPARENT ILEAL AMINO ACID DIGESTIBILITY IN RAPESEED MEAL AND CAKE USING THE DIRECT AND DIFFERENCE METHODS WITH GROWING PIGS In Vitro Gas Production Measurements to Evaluate Associate Effects Between Mulberry Leaves and Oilseed Meals

基于对所研究相的极化行为测定和X-射线衍射鉴定，以及用所述差减法所得μ相的组成与能谱分析结果一致，确认建立的方法是可靠的。

On the basis of polarization behavior measurement and X-ray diffraction identification for studied phases as well as the consistency of μ component obtained by EDX analyses and differential method , it is sure that the established method is reliable .

收获期棉株取样化验分析，根据差减法求得滴灌棉花氮肥利用率为48.58%～53.15%，磷肥利用率为18.73%～24.84%。

In the cotton harvest time , sampling to analyze , according to the subtraction counts nitrogen fertilizer utilization is 48.58 % ~ 53.15 % in the cotton with drip irrigation , utilization of phosphorus is 18.73 % ~ 24.84 % .

在分析传统的差影减法实现目标检测算法的的基础上，基于灰度数学形态学原理，采用Top-Hat运算去除图像噪声并完成纸病图像的可疑目标的快速检测。

After analyzing traditional image difference subtraction algorithm , based on the theory of mathematical morphology , Top-Hat operation algorithm is chosen to remove image noise and perform the task of object detection based on gray morphology theory .

基于有限差分强度折减法的黄延高速公路边坡稳定性分析

Stability Analysis of the Slope in Huangyan Expressway Based on Finite-difference Strength-reduction Method