效益计算一般可采用有、无对比法。
研究方法：文献资料法，对比法。
研究方法：文献资料法，对比法。
Methods of documentation and comparison analysis were employed.
建与不建工程影响下的环境指标对比法。
A comparison of environmental indices or indications between the situations with and without the project.
方法：采用光斑毒性计量时间测试、对比法。
METHODS: Testing and comparing each drug by means of photosensitizing toxicity measurement time.
其次还建立了交互对比法和最小二乘法的等效性。
Furthermore, the equivalence between the method of cross-contrast and that of least squares is established.
研究方法：资料综合分析法、对比法和实证分析法。
Method of documentation, comprehensive analysis and case study were employed.
相位对比法(PC)测门静脉血流速度、每分钟流量。
Portal velocity and portal flow with phase contrast (PC) were measured.
利用对比法，讨论了武汉市雾日与城市小气侯的关系。
This paper emphatically deals with the regularities of fog's formation and dissipation in city and suburb, and its relations with urban microclimate.
目的：评估磁共振电影相位对比法对液体流速的实验价值。
Purpose:To estimate the experimental value of PC cine MR for fluid flow.
本文运用对比法和举例法研究现代汉蒙语言构词法的异同。
The author will study the similarities and differences between the word-formation in Chinese and Mongolian by the approach of comparison.
本文主要利用新老井测井曲线叠合对比法对测井曲线进行校正。
This paper mainly introduces superimposing correlation techniques of logs from new and old well.
本文通过大区对比法对浅翻深松改良低湿耕地的效果进行研究。
The improving effect of shallow ploughing and deep digging to low-wet soil was studied in this paper.
采用对比法对辅助平面在求一般位置的线面交点中的作用进行了论述。
This paper expounds the use of an auxiliary plane in seeking the point of intersection between a straight line and a plane, using a comparative analytical method.
常用的方法有词义挖掘法、翻译对比法、文学作品阅读法和角色扮演法。
A series of methods are frequently used in cultivating cultural-awareness: words explanation, translation contrast, literature appreciation and roles acting.
方法采用随机对比法，两组均用电灼术去掉疣体，术后全身肌注干扰素。
Methods 86 cases were divided randomly into interferon group and transfer factor group after electric burn.
这种“换件对比法”有时能大大缩短判断故障的时间，起到事半功倍的效。
This "for pieces of contrast" sometimes can greatly determine the failure rate at the time, play a multiplier effect.
方法采用横向对比法，重点分析了具有代表性的3种食品召回模式及其异同。
Method The representative food recall modes in 3 typical countries were analyzed emphatically by landscape contrast.
主要的研究方法有文献资料法、问卷调查法、实验对比法、数理统计法、对比分析法等。
The main research method includes data method, questionnaire experiment comparing method, statistical method, and analysing method, etc.
同时运用1/3倍频程分析对比法和总加权加速度有效值法评价了拖拉机的乘坐舒适性。
The 1/3 octave bands and total weighted average are exploited to estimate the ride comfort of the tractor.
最后，提出了三种方法对模型进行校验，分别是指标对比法、参数对比法、曲线拟合法。
Finally, three methods have been proposed for model calibration, namely, index comparison, parameter comparison and curve fitting.
对于采用对比法讲授控制收敛定理进行了说明，指出其优点与注意事项，以增强教学效果。
It is described about the teaching on contrast of control convergence theorem. The authors point out its advantages and attention to enhance teaching effectiveness.
目的探讨相位对比法MR和形态体积分析法MR成像技术在评价心室功能中的临床应用价值。
Objective To investigate the clinical application value of phase contrast MR imaging and stereological cine MR imaging in the assessment of ventricular function.
在山西临汾、襄汾采用大区对比法研究了土壤质地和茬口对小麦产量及水分利用效率的影响。
Affect of soil texture and rotation on wheat yield and water use efficiency has studied by using the method of contrast in Linfen and Xiangfen, Shanxi province.
本文主要采用文献回顾法、列举法、对比法和实验研究法探讨活动在英语课堂教学中的作用。
This thesis aims to explore activities applying in English teaching by documental method, comparative method, experimental method and method cited.
文中的研究方法采用了文献研究法、数据对比法，调查问卷法，教师访谈法和实验研究法等。
The main body of a book research method has adopt document studying law, data contrast law, inquiring into questionnaire law, teacher interview law and experiment studying law and so on.
本文论述的有序多元素测井曲线自动对比法，是在单元素最佳匹配对比法的基础上改进而成的。
Automatic logging curve comparison using optimum ordered multielement match is based on the improved logging curve comparison using optimum single element match.
文章运用了分析与综合法，宏观因果分析法、事物渊源对比法、个体心理研究法、角色法等方法。
The article analysed with the use of integrated law, the macro causal analysis, things origins contrast, and individual psychological study law, the role of law.
文章运用了分析与综合法，宏观因果分析法、事物渊源对比法、个体心理研究法、角色法等方法。
The article analysed with the use of integrated law, the macro causal analysis, things origins contrast, and individual psychological study law, the role of law.
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