safety and arming device meaning in English

保险爆炸装置

Lately years , quasiliquid safety and arming devices are more widely used not only in domestic fuzes but also in overseas fuzes
近年来准流体延期解除保险机构在国内引信产品型号中得到了较为广泛的应用，国外也有应用。
But almost none studies analysis and design principle about quasiliquid device by the numbers . for providing theory guidance for quasiliquid device design and improving capability and reliability of quasiliquid fuzes , taking experience formula of loose object orifice flowage of loose object mechanics , this paper constitutes three type quasiliquid safety and arming device mathematics models by force analysis
为了为引信准流体机构设计提供理论指导，提高准流体引信性能及其可靠性，本文以散体力学散粒体孔口流动经验公式出发，结合典型准流体机构具体结构，通过受力分析，建立了离心力驱动、弹簧力驱动和离心力与弹簧力相结合驱动三种典型准流体延期解除保险机构地解除保险过程数学模型。