7月11日
错误的,意识中不记得的,没有听清楚的,去掉的,我觉得我的对~
Today I'll(wanna) talk about the result of erosion(a recent) study. These results indicate the routine cleanings of the oil painting intended to how to(help) preserve them, in(may) actually h s there to carry erosion(hasten加速 their deterioration变坏,退化). As you know, conservators often use strong or chemical(organic有机物的) sovlens(solvents溶剂) such as alcohol or astone(acetone丙酮) to clean paintings. They have been many studies of the chemical set for such solvents. The studies were designed to make sure that thousand stute(the solvents don’t)& H( O6 y, e; ^8 n J! G0 k
interact in the harmful way when(with) the chemical in paint or with the glue use to serve in(seal封蜡) canvas for example. But the recent study was the first taking figure(to consider) the fact that thousand con
7 u W9 w6 A Nofter(solvents turn to cool off their) surrounding of the vabrate(as they evaporate). The new study found that swaping(sweeping笼统的,一扫而光的) a painting with acetone for just 5 seconds can cause the spot of acetone was plied(applied) to reach near freezing temperature, and even that if you’ve feel never had another course in physics. You are probably wear(aware) that use to (things) contract to(and) expand at the different rates when temperatures changes. That's why running hot water over a jack (jar罐子)in making(can make) it easier to get a little(the lid盖子) off. the metal lead expanse more than the glass jar as. Since different layers of paintings such as glues, fabric and paint also respond differently to temeperature changes.It turns out that the use of solvents can subject the paintings to very strong chemical(mechanical) stresses. In other words, even if there were no chemical damage, the use of strong solvents can make(weak) a painting structurally, alternately cause carely to(inter-deteriorate) more quickly.
崩溃啊~~崩溃~~~
这绝对不止是单词的问题~~~~~崩溃~~崩溃~~~~
有人能给我指导么~~