The paper takes wreath epoxy chloropropane, bisulfite sodium as raw material, the adopting two methods to synthesize 2,3-oxiranemethane sulfonic acid sodium salt;
以环氧氯丙烷、亚硫酸氢钠为原料，采用两步法合成2，3-环氧丙磺酸钠；
The practice has proved the application results of adopting these two methods tally with the actual logging results of core well.
实践证明，采用这两种方法的实际应用结果与岩心实测结果吻合较好。
On the base of tests, two kinds of measuring methods adopting different standard distance of the elastic modulus of plastic concrete have been analyzed and a more reasonable method has been found.
在试验的基础上分析了塑性混凝土弹性模量采用不同标距的两种测试方法，得出了测试塑性混凝土弹性模量较为理想的方法。
The theory of Impact Drive Mechanism (IDM) is proved through comparing the results of two analysis methods, and the feasibility about pipe motion micro robot adopting the IDM theory is proved.
通过对两种方法的分析结果对比，验证了惯性冲击式运动原理的正确性，以及该原理用于管内移动微小型机器人驱动是可行的。
Two cases were given to show that adopting specimens with reasonable dimensions and proper testing methods played a very important role in castings production control and quality guarantee.
列举两个实例说明选择合理尺寸的试块和检测方式对指导生产保证铸件质量起着极其重要的作用。
By adopting the methods of experimental research and educational investigation, the teacher has made a two-year practical research, verifying the function and effect of this mode.
作者采用了实验研究法、教育调查法进行了两年的实践研究，验证了该模式的作用和有效性。
Methods: the breakfast structure and the nutrition knowledge of 3 547 students in rural boarding middle school in Chongqing were investigated by adopting stratified two-stage cluster sampling method.
方法：采用分层二阶段整群抽样方法，对重庆市3 547名中学生早餐饮食结构和营养知识进行调查。
Methods: the breakfast structure and the nutrition knowledge of 3 547 students in rural boarding middle school in Chongqing were investigated by adopting stratified two-stage cluster sampling method.
方法：采用分层二阶段整群抽样方法，对重庆市3 547名中学生早餐饮食结构和营养知识进行调查。
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