生长环 meaning in English
annual growth ring
Examples
- Cleaning and controlling of growth - ring in water pipeline
给水管道生长环的冲洗与防治 - The results showed that its yield was inversely proportional to the concentration of - amylase and reaction time when the maize starch was hydrolyzed by - amylase ; the granular maize starch was converted into hollow - porous starch by ct - amylase , furthermore it was cracked to the fragments , it was discovered that there were laminated growth ring structure inside starch granular shown on such cracked granular fragments ; the crystallinity of maize starch granule can not he increased by the enzyme hydrolysis ; the thermodynamic stability of the product was reduced when the hydrolysis time was long
检测结果表明， -淀粉酶催化水解玉米淀粉时，其收率与酶的浓度和反应时间成反比；颗粒状玉米淀粉发生酶催化水解时， -淀粉酶首先使淀粉形成多孔状结构，并进一步使颗粒破裂，断裂的颗粒碎片上显示出淀粉颗粒内部具有层状的生长环结构；酶催化水解不能提高玉米淀粉颗粒的结晶度；酶解时间较长时，产品的热稳定性降低。