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耐雨的
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Paint with the Deep-Drawing Resistance 耐深冲漆 短句来源 Automatic Tester of Withstand Current 耐流测试仪 短句来源 Seed rain of Glycine soja 野生大豆种子雨的研究 短句来源 
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Sumielin, a smoking insecticide with fenvalerate as the effectiveingredient, was tested aganist the Massons pine caterpillar, Dendrolimuspunctatus, both in laboratory and in forest. Contact toxicity was determinedas the primary action markes. It lasted for more than 7 days when sprayedin foresty and was rainfast. The effective dosage was 1--1. 6g/mu. Contactof 5th or younger instar larvae for over 60 seconds resulted in good effic-acies. As compared to conventional ground spray of oil emulsion, the smokingi... 在室内和林间,对速灭灵烟雾剂(有效成份为氰戊菊酯)防治马尾松毛虫进行了研究。该药作用方式以触杀为主,林间喷施受药松针杀虫持效7天以上,耐雨淋较理想,每亩有效成份用量1—1.6克,5龄以下幼虫受药60秒以上,有较好防效。与常规地面乳油喷雾相比,防治效果略优,提高工效3—4倍,降低成本43.3%,且不受水源、树高条件限制。本文还探讨了主要林地类型条件下的基本施药技术措施。 文摘来源 Polyurethane coating system modified with silicone resin is introduced ?It has good weather ,rain erosion and heat resistance as well as perfect transmission efficiency; by controlling tempereture,relative humidity and spraying viscosity,limiting coating consumption and selecting solvent.additive,a polyurethane coating with high properties is obtained for the radome of fighter. 介绍有机硅改性聚氨酯涂料的工艺及性能。该材料具有良好的耐候性、耐热性、耐雨蚀性和电传输效率;在涂刷工艺过程中通过控制工作粘度、温度、湿度等工艺参数,限定涂料消耗,选择溶剂、助剂等可以得到性能优良的飞机雷达罩保护涂层。 文摘来源 The study and progress on coating systems for radome of plane are introduced in the paper. It also introduced the properties of the PTMG Po1yurethane coating. 简单介绍了耐雨蚀涂料的研究情况及聚四氢呋喃型聚氨酯弹性涂料的主要特点。 文摘来源 << 更多相关文摘 
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