The research on olfactory threshold of liquor flavoring substances would provide scientific evidence for the study of liquor flavoring substances and the development of liquor-making industry .

白酒香味 阈值的研究将为白酒香味成分的研究和白酒工业的发展提供基础科学依据。

Massage therapy could regulate neurohumoral system increase pain threshold and excitability of paravertebral muscle improve microcirculation accelerate excretion and absorption of pain-induced substances and stimulate excretion of analgesic substances ;

手法可调节腰椎间盘突出症患者的神经体液系统，提高 痛阈及椎旁肌肉的兴奋性，改善微循环，促进致痛 物质的排泄及吸收，刺激止痛物质的分泌；

The contents of formaldehyde in the samples were determined according to the National Standard Detecting Method for the threshold of harmful substances in decoration materials .

检测方法均参照建筑装饰装修材料有害 物质 限量的国家标准检验方法。

Threshold Studies on The Relativity of Bitter Taste Between PTC and Other Substances

苯硫脲与其它 物质苦味味觉遗传相关性 阈值分析

With low odor threshold and is harmful to health when at higher concentration hydrogen sulfide gas is one of the most important part of the malodorous substances furthermore the source of hydrogen sulfide have a broad distribution .

硫化氢气体来源广、嗅 阈值低、浓度较高时会对人体健康产生严重危害，是恶臭气体中最为典型的恶臭 物质。