The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.
The direction of luminiferous evacuation indicator is fixed in complex fire accident scene，that is difficult to play safe and effective role in the evacuation instructions.
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.
On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
FOR MOST OF ITS 100-YEAR HISTORY, NEUROSCIENCE has embraced a central dogma: a mature adult's brain remains a stable, unchanging, computerlike machine with fixed memory and processing power.
It is often thought that pluralism in ethics goes hand in hand with ethical relativism, and that, conversely, a non-relativist view of morality entails a monolithic kind of moral absolutism.
In the morning, when we were already at the dock in Cienaga, my grandfather stood shaving with his straight razor, the door open and the mirror hanging from the frame.
Each individual’s youth faithfully repeats that of his forebears, introducing him to a role that lives on unchanged: it is a “pre-scribed” youth, which, to quote Mannheim again, knows no “entelechy.
。
者生存，不论现在还是将来，都是自然
、以
有
变
。
