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- delay propellant grain 延期药柱
- FONG C W and MOY B K. Ballistic criteria for propellant grain fractur e[J]. J Ballistics 1982,6: 1410. 黄洪勇;王泽山.;两种工艺制造的低温感包覆火药性能的比较研究[J]
- Herb Chelner,Jim Buswell,Dan evans.Embedded sensors for monitoring solid propellant grain. 余宏发.;光纤传感器在固体发动机测试中的应用
- The insulation layer, artificial debond layer and propellant grain in solid rocket motor chamber (SRM) are all polymer composite systems. 固体火箭发动机燃烧室内绝热层、人工脱黏层及推进剂药柱,均为高分子材料复合体系。
- The crystallization of RDX from a tubular composite modified double-base propellant grain has been investigated with a scanning electron microscope. 用扫描电子显微镜研究了含RDX的管型改性双基推进剂的晶析情况。
- After having solved the aging problems of beams,the long term ag-ing effect of a solid propellent grain is also analyzed as an example. 在对梁的受拉伸与自重情形下的老化作了分析后，举例分析了真实固体火箭发动机药柱的长期老化效应。
- The burning rates of the propellants grain coated by silicon rubber at the pressure range from 30 to 80 MPa were measured by the Crawford test. 指出选择传热系数小、黏接可靠的包覆材料是保障高压高燃速火药测试准确性的关键技术。
- No delay! We urgently need these books. 决不要拖延！我们急需这些书。
- The delay made the patient go purple in the face. 时间的拖延使病人脸色发紫。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- We decided to delay our wedding until next year. 我们决定把婚礼推迟到明年。
- Development of dampproof coating applied to composite soild propellant grain 复合固体丁羟推进剂药柱表面防湿涂层研制
- I owe you an apology for the delay. 我该为这次耽搁向您道歉。
- Please see into this matter without delay. 请立即调查这件事情。
- I was impatient at his delay in answering. 我对他的迟延答覆感到不耐烦。
- The company is an international trader in grain. 这家公司是国际粮食贸易公司。
- After a long delay the performance finally started. 演出拖延很久，最後总算开始了。
- After much delay, he finished his paper at last. 拖了那么久，他终于完成了论文。
- Please send them here without further delay. 请即派员前来，勿再迟延。
- In this instance we will overlook the delay. 在此情况下我们宽容这次延误或耽搁。
