SSS 2011-12-01
时间：2019-01-08 作者：英语课 分类：Scientific American(十二)月
英语课
Milan is one of Europe’s most polluted cities and that puts Leonardo da Vinci’s The Last Supper at risk. The painting has been on the wall of a dining hall in Milan’s Santa Maria Delle Grazie monastery 1 for more than 500 years.
Particulates 2 in the air from motor vehicles can accumulate and damage works of art. In response, Italian authorities installed a high-tech 3 system of heating, ventilation and air conditioning.
To test its efficacy, researchers installed air monitors throughout the room housing the masterpiece, and outdoors. Over a year, they found that fine particulates were reduced indoors by 88 percent, and coarse particulates by 94 percent, compared to the levels outside. The research was in the journal Environmental Science and Technology.
The scientists say that’s a huge success.
The painting has been threatened before—by Napoleon’s army, by the poor attempts of previous conservators, by bombs during World War II. Even airborne lipids from visitors’ skin can pose a danger, mitigated 4 by a strict regulation on the number of viewers.
But if conservation measures are successful, The Last Supper should feed art lovers for centuries to come.
Thanks for the minute. For Scientific American’s 60-Second Science, I’m Cynthia Graber.
n.修道院，僧院，寺院
- They found an icon in the monastery.他们在修道院中发现了一个圣像。
- She was appointed the superior of the monastery two years ago.两年前她被任命为这个修道院的院长。
n.微粒，粒子( particulate的名词复数 )
- Techniques for controlling particulates include filtering, washing, centrifugal separation, and electrostatic precipitation. 控制颗粒污染物的技术包括过滤、洗涤、离心分离、静电沉降。 来自英汉非文学 - 环境法 - 环境法
- Only micronic particulates penetrate to the depth of the lung. 只有微细粒子穿透到肺深部。 来自辞典例句
adj.高科技的
- The economy is in the upswing which makes high-tech services in more demand too.经济在蓬勃发展，这就使对高科技服务的需求量也在加大。
- The quest of a cure for disease with high-tech has never ceased. 人们希望运用高科技治疗疾病的追求从未停止过。