Analysis is introduced about the supplementary condition from deducing formula and the stress-strain change of beam's section when it is destroyed.
对该条件的公式进行了推导；分析了破坏时梁截面的应力应变情况。
The paper introduce use of walk stick, kinds of walk supplementary tools, condition of using walk instrument, problems about walk stick recipe and pay attention to item.
本文介绍了手杖用途、步行辅助工具的种类、使用步行器所需条件、与杖类处方有关问题以及注意事项。
The results of simulation was satisfactory, the relative error is less than 5%. They could be used to monitor soil moisture condition and to guide supplementary irrigation.
模拟结果令人满意，其相对误差小于5 %，可用于旱地地膜春小麦的土壤水分监测和指导补充灌溉。
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