lfn的音标

Then on the basis of Longitudinal Fuzzy Number ( LFN), the paper discusses more extensive mathematical models of fuzzy systems, and presents a series of quantized formula of the language control rules for the controlled systems.

其次以纵向Fuzzy数（LHN）为基础讨论了更广泛的Fuzzy系统的数学模型，由此还给出了控制系统语控规则的量化公式。

This showed that straw mulching and plastic-film mulching improved soil moisture condition in winter, and promoted wheat to take up and use soil N. soil mineral N was closely correlated to LFN.

说明地表覆草和覆膜改善了小麦越冬期土壤的水分状况，促进了作物对氮素的吸收。土壤矿质态氮动态变化与轻质有机氮密切相关。

The physiological and psychological effects induced by noise, especially low frequency noise ( LFN), have been a hot research topic in the field of environmental noise.

环境中噪声特别是低频噪声对人的心理和生理影响近年来成为环境噪声领域研究的热点。