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- A high temperature open resonator measuring system for low loss radome materials is introduced. 摘要介绍了一种测量低损耗天线罩材料的开腔高温自动测量系统。
- Radome materials for hypersonic velocity missiles should have excellent mechanical, dielectric, ablation and shock resistance performance. 高超音速导弹用天线罩材料须同时具有力学、介电、耐烧蚀及抗冲击等综合性能。
- The performance of radome materials are discussed such as microcrystalline glass,slip-cast fused silica,and silicon nitride etc in the paper. 介绍了微晶玻璃、石英陶瓷、氮化硅等几种天线罩材料的性能,重点探讨了可控密度氮化硅陶瓷材料的特点及在导弹天线罩上的应用。
- In the paper, the history of the radome materials was reviewed and the present status of the microwave transparent composites reinforced by continuous fibers was emphasised. 高超音速导弹用天线罩材料须同时具有力学、介电、耐烧蚀及抗冲击等综合性能。
- The key technologies of the radome materials for hypersonic missiles were introduced, including selective materials, processing and machining technology. 高超音速导弹用天线罩材料须同时具有力学、介电、耐烧蚀及抗冲击等综合性能。
- Aimed at the features of the quartz-containing ceramic radome material,three kinds of surface coating materials were selected in the present investigation. 针对石英陶瓷整流罩材料的特点,本研究选择了3种表面涂层材料。
- SiO2/(Si3N4+BN) composite,a high performance hypersonic missile radome material,has been developed recently. SiO2/(Si3N4+BN)复合材料是近几年发展起来的综合性能优良的适用于高马赫数的导弹天线罩材料。
- Wang Xiaoqun,Du Shanyi,Han Jiecai,et al.Study on ablation radome material for broad-band supersonic missile[J].Acta Materiae Compositae Sinica,1999,16(3):12-18. [2]王小群;杜善义;韩杰才;等.;高速宽频带导弹天线罩的耐烧蚀透波材料研究[J]
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- The beautiful curtain is made of remnant materials. 这个漂亮的窗帘是用零头布做的。
- Some synthetic materials do not crush easily. 有些化纤衣料不易起皱。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
- Research on refractory radom material of RTM resin matrix 耐高温透波材料用RTM双马树脂基体的研究
- He buys the materials wholesale. 他成批地购买原材料。
- He is collecting materials for a book. 他正在为写书搜集素材。
- Building materials are expensive. 建筑材料很昂贵。
- A bin for storing ore, grain, or other materials. 仓库储放矿石、谷物或其它材料的大箱
- He is gathering materials for a new book. 他正在收集资料准备写一本新书。
- Environmentalists are keen on degradable materials. 环保分子特别喜爱能够自然分解的材料。
- Recycled materials are mostly of limited use. 再生材料大多用途有限。
