1) low smoke density coefficient
低烟密度系数
1.
Preparation, technology and performance of new expansion type fire-retardant coating with low smoke density coefficient and condensation resisting property incorporating fire-retardant and smoke eliminating aggregate and nitrogen-phosphor fire-retardant constituents are described.
介绍了含有阻燃消烟骨料和氮-磷阻燃组分的具有低烟密度系数和防结露性能的新型膨胀型防火涂料的制备工艺和性能。
2) LDDS Low Density Data System
低密度数据系统
3) LDD Low Density Data
低密度数据
4) bulk factor
密度系数
5) low temperature coefficient
低温度系数
1.
In order to analyze the low temperature coefficient mechanism of single-base propellant deterred by poly(ethylene glycol dimethacrylate)(D1),the physicochemical properties,liner expansion coefficient and mechanical performance,of polymer D1 and single-base propellant at different temperatures are studied by dynamic mechanical analyzer and material tester.
为研究聚二甲基丙烯酸已二醇酯(D1)钝感的单基发射装药的低温度系数机理,在不同温度条件下,采用动态机械分析仪、材料试验机等研究了D1和单基发射药的物化性能(线膨胀系数及力学性能),通过密闭爆发器、中止试验等,对钝感多气孔单基发射药的燃烧性能进行了分析。
2.
A compensating system is founded in two-layered variable-burning rate propellant and low temperature coefficient of the propellant is realized.
根据银纹厚度随温度的变化,改变火药燃烧面和建立一个补偿系统,使变燃速发射药具有低温度系数。
3.
2:17 type RE cobalt base magnets with super low temperature coefficient,radial orientation and high electrical insulation were investigated.
研究了具有超低温度系数、辐射取向和辐射多极取向、高电绝缘三种特殊用途的２：１７型稀土钴基永磁体及制作方法。
6) compactness coefficient
密实度系数
1.
Aiming at the phenomenon of small size and concrete incompactness in the densely packed reinforcement in the web plate,the top plate and between the prestressed reinforcement,the concrete compactness coefficient is put forward based on the strength measurement principle using ultrasonic-rebound method.
针对桥梁中箱梁腹板、顶底板预应力筋间尺寸小且配筋密集的部位混凝土不密实现象,依据超声回弹综合法的测强原理,提出混凝土密实度系数的概念。
补充资料：光学烟密度
分子式：
CAS号：
性质：材料燃烧过程中将放出烟雾，而浓烈有毒的烟雾是造成火灾中人员伤亡的重大原因。因此，发烟量的测定是测定燃烧性能的重要内容之一。光学烟密度即是用透光率的变化来量度燃烧空间中的浑浊程度。
CAS号：
性质：材料燃烧过程中将放出烟雾，而浓烈有毒的烟雾是造成火灾中人员伤亡的重大原因。因此，发烟量的测定是测定燃烧性能的重要内容之一。光学烟密度即是用透光率的变化来量度燃烧空间中的浑浊程度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条