The dowtherm design depends on the characteristics of dowtherm and polyamide production process.必须根据导生的特性及聚酰胺生产的工艺特点,选择合理的设计方案.Verify all the equipments and pipelines of the Dowtherm system are in good condition.检查加热炉运行系...
白内障是一种影响晶状体透明性的疾病。Cataracts is a condition that affects the transparency of the lenses.他是一位曾经动过白内障手术的老人.He is an elderly gentleman who had had a cataract operation.研究表明，即使抽烟不多的人也比不抽烟的人患白内障的概率高出一倍多。In one study, light smo...
Weber gave a fair hearing to anyone who held a different opinion.韦伯让持不同意见的人都能有机会发表意见。Weber is challenging his audience to question their own beliefs.韦伯正要求观众们反思质疑各自的信仰。The man responsible for finding the volunteers is Dr....