防的例句大全

The hot-oxygen aging of styrene series thermoplastic elastomer and its epoxidized elastomer in hot-oxygen aging set were studied. The effects of various structure, epoxide degree, anti-aging agent on the anti-aging property of styrene series thermoplastic elastomer were investigated.

利用自制的热氧老化装置对苯乙烯系热塑性弹性体及其环氧化物进行了热氧老化研究，考察了不同结构、环氧度及防老剂对苯乙烯系热塑性弹性体耐老化性能的影响。

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Boric acid ester, tri ethanolamine salt of substituted benzoic acid and sodium gluconate were used as anti rust additives in water based cutting fluid.

以硼酸酯、取代苯甲酸乙醇胺盐、葡萄糖酸钠三者为混合防锈剂应用于切削液中，其中硼酸酯和取代苯甲酸乙醇胺盐有明显的协同效应。

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One set of boron diffusion technologies to form the heater have been developed, which is effective in preventing the invalidation of the perpendicular PN junction of the cantilever during tip heating, thereby avoiding electric current leakage.

探索出一套特殊的有关加热电阻的硼热扩散技术，有效防止了器件在工作过程中由于悬臂梁垂直方向上PN结在高温下失去电隔离作用而发生漏电现象。

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Mechanisms of Immunology and Pharmacology for Prevention and Treatment of Bovine Mastitis

奶牛乳腺炎防治的免疫学和药理学机制

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Spring bow ( drawing instruments) Application of FHT Collision Proof Crossbeam and Safety Catch Holding Apparatus

弹簧圆规（绘图仪）FHT型弹性防撞梁及缓冲托罐装置的应用

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At night I park the car outside the Polish embassy, within sight of a sentry box, to deter thieves.

晚上我把车停在波兰大使馆外，岗亭看得到的地方，以防止窃贼。

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Application of Teaching Method of Combining Offensive and Defensive Skills in Elementary Boxing

攻防教学法在初级长拳教学中的应用研究

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The Cause and Prevention of Knee Joint Injury in Hexagram Boxing Exercises

太极拳运动中膝关节损伤机制和预防

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Antiskid Checking Calculation of Safety Braking Deceleration for Tower-type Friction Winder

塔式摩擦提升机安全制动减速度的防滑验算

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Prevention of accidents of branched chain reaction explosion in synthetic ammonia plant

合成氨厂支链反应爆炸事故的预防

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Application of anti-aging agent 688, Rd compound in styrene butadiene rubber production

防老剂688，RD复合物在丁苯橡胶生产中的应用

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Development and Field Experiment of Tubing Pump Fixed-valve Preventive Plug

管式泵固定凡尔防堵塞器研制及其在矿场的应用

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Fig.9 illustrates a simple flat roof, consisting of timber bearers covered with timber boarding and finished with several layers of tar felt.

图9所示为一个简单的平屋顶它由木承梁组成并铺以木板，再铺几层油毡防水。

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Elastic adhesive felt after milling can be used as shock, seal, gasket and flexible steel needle felt cloth base material.

缩绒粘合后毛毡富有弹性，可作为防震、密封、衬垫和弹性钢丝针布底毡的材料。由密度的大小，规格的不同可分开使用。

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Sewing a small piece of felt or chamois cloth between the zipper closure and skin will prevent chaffing.

缝一小块毡布或麂皮在拉链与皮肤之间将可能防止擦痒。

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Mechanism on clogging of ladle nozzle during changing aluminum to silicon killed steel casting and its preventive measures

铝改硅镇静钢浇注钢包水口堵塞原因及预防措施

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Local Sun-cured Tobacco Germplasm Resources for Tobacco Black Shank Resistance Studies of Population Diversity on Endophytic Fungi of Tobacco and Selection of Biocontrol Endophyte to Tobacco Brown Spot Disease

地方晒烟种质资源对烟草黑胫病抗性研究烟草内生真菌种群多样性及烟草赤星病生防内生菌的筛选

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In addition to environmental considerations such as the need to reduce both vermin and stench, the sheeting traps methane gas, allowing it to be collected by a network of well-heads and rubber tubing.

除了需要减少害虫和臭气等环境方面的考虑，塑料布还可防止沼气泄漏，使沼气可以通过井楼和橡胶管组成的网络收集在一起。

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A one-component combining adhesive for earthwork films was made from the thermoplastic poly-ether-polyureghane ( as the main material), modified resin, mixed solvent and anti-aging agent.

以聚醚型热塑性聚氨酯为基料，配以改性树脂、混合溶剂和防老剂，制成了一种单组分土工膜复合胶粘剂。

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The clinical manifestations, laboratory findings and treatment were evaluated.

方法调查SLE患者光暴露及光防护措施的态度及行为，并对患者的临床表现、实验室检查指标及治疗予以评估；

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