steady state conditions meaning in English

恒定状态
稳定条件
稳态条件

Instead of dissipating within several milliseconds , they can exist in a steady state condition on the data network
这种能量的消散只需几毫秒，但却可以持续稳定地存在于数据网络中。
Reciprocating internal combustion engines - exhaust emission measurement - definitions and methods of measurement of exhaust gas smoke under steady state conditions
往复式内燃机.废气排放测量.第3部分:在稳定状态下废气黑烟排放测量定义和方法