单词chemical change
un.: 化学变化
网络: 即系有化学改变；化学结构改变；鍖栧
化学变化
Researchers looked for - and found - a chemical change called DNA methylation in healthy tissue adjacent to breast tumors.
研究者寻找并发现了靠近肿瘤组织的健康组织中有“DNA甲基化”这种化学改变。
When two or more elements combine and form a compound , a chemical change takes place.
当两种或两种以上的元素结合形成化合物时，发生化学变化。
As the wrigglers develop, the gelatinous outer membrane decomposes , perhaps triggered by a chemical change in the tadpoles.
随着这些小虫的生长，胶状的外部膜会分解，这可能是由于蝌蚪内部的化学作用而触发的。
A few perfume still can be had chemical change by ultraviolet illuminate, cause dermatitis disease.
一些香水受到紫外线照射还会起化学变化，并引起皮肤炎症。
We may define chemistry as the science in which we deal with the chemical change in matter.
我们会把化学定义为科学，在这个定义过程中我们与物质中变化的化学元素打交道。
A chemical change takes place in paper when it burns.
纸燃烧时发生化学变化。
Any chemical change in the mother"s blood will affect the child for better or worse.
母亲血液中的任何化学转变城市对胎儿带来好的或坏的影响。
A powder coating designed to undergo an irreversible chemical change during heating and will not revert to the liquid stage when reheated.
受热后发生不可逆化学反应，当再次受热不会成为液态的粉末涂料。
When matter change to a substance different from what it was, the change is a chemical change.
当物质变成和原来不同的物质时，这种变化是化学变化。
They measured this chemical change in a gene that often becomes highly methylated in breast cancer.
他们测量了一个在乳腺癌中高度甲基化的基因。