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1·It is obvious th at A. C. motors are superior to D. C. motors in many appli cations.

显然，交流电机在许多应用场合比直流电机优越。

2·For the question evoked by the modification of the complementary norm, the article holds to the principle of appli...

由补充规范的变更引起的溯及力问题，应坚持从旧兼从轻原则。

3·[GUO Xianguang. Appli-cation of improved entropy method in evaluation of economic res ult[J]. System Engineering Theory&Practice, 1998, (12):98~102. ].

[10]郭显光。改进的熵值法及其在经济效益评价中的应用[J]。系统工程理论与实践，1998，（12）：98~102。

4·Conclusion: Diagnosis and emergency cure of acute pulmonary edema requires decidedly and be time, rectifying the low oxygen in time. The serious case should appli...

结论：对急性肺水肿的诊断及急救必须果断及时，尽快纠正低氧血症，严重病例应尽早行气管插管和机械通气。

5·Nonwoven material is one of important covers in agricultural appli cation. Evaporation of water through the material involves mechanism of complex thermo-mass transport.

非织造纤维材料是农业上用作覆盖物的一种重要材料，水分经这一材料蒸发时，涉及到复杂的热质同时传递现象。

6·APPLI CATION: Apply to concrete mixer, bitumen mixture equipments, equipments of converter or blast furnace burden or weight-controlling trades such as chemical industry, fodder, etc...

应用范围：混凝土搅拌及沥青混合料设备、冶金高炉，转炉以及化工、饲料的重量控制等行业。

7·On the basis of the domestic and foreigh aluminum alloy additive, this article research a new aluminum alloy additive, which have the advantage of fast dissolving, high efficiency and wide appli.

本文在总结国内外铝合金添加剂的基础上，提出了一种新型高效速熔铝合金添加剂的研制方法。