同义词： invariability invariance
以上来源于: WordNet
The output current is never influenced by power supply, realizing the invariableness of load current.
输出电流不受供电电压波动的影响，实现了电路的恒流功能。
An invariableness pressure decompression valve is added to common PCM to keep pressure discrepancy invariable approximately.
在原有PCM流量控制阀组中加上一个定差减压阀，使压力差近似保持定值。
Voxel attributes, voxel density and the way to keep the invariableness of voxel density are studied, and the method of parallel data transmission link is discussed.
首先，分析体扫描技术的成像原理，研究体素的特性，密度变化，如何保持体素密度的恒定，提出了并行数据传输连接的方法。
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