按比例变化 [
àn bǐ lì biàn huà]
[统计] proportional change
- 信号中的电压按声波比例变化。
The voltage in the signal varies in direct proportion to the sound wave. - 工程师或设计者可以要求做一按比例变化的结构模型。
The engineer or designer may call for a scale model of the structure to be made. - 当煤气在零压阀保持零压的条件下,煤气吸入量将随着空气量的改变按比例变化,从而达到充分燃烧。
When coal gas maintains the zero pressure at the zero pressure valve under the condition, coal gas soakage along with air volume change according to proportion change, thus achieves full burning.
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