2.The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.
国际制度主要采用了十进制法、字首体系、以不变物理度量方式解释标准。
3.In the case of invariable of outrigger belt and changing the vertical positional arrangement, the effect on structural inner force, natural vibration period and sidesway were discussed.
分析固定加强层水平伸臂位置不变,改变环带竖向位置,研究环带竖向位置对高层框筒结构力学性能影响。
4.In calefactive phase, the electro thermal model of hot bridge wire was established, the calefactive time of invariable current fire case and capacitance discharge fire case were both studied.