This process,however,was not invariable.

但是,这个过程并非始终变。

The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.

国际制度主要特点是采用了十进制法、字首体系、以变物理度量方式解释标准。

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.

分析固加强层水平伸臂变，改变环带竖向，研究环带竖向对高层框筒结构力学性能影响。

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.

在升温阶段建立桥丝电热升温模型，分别求解电流点火升温时间和电容放电点火升温时间。