Such as grain sheet rubber, it play the role of derrick and inflaming retarding.如有纹理的橡胶片, 这种材料可起到防滑、阻燃等功能.There may be a need for retarding growth chemically to keep trees within bounds.可能需要用化学剂抑制生长,使树冠保持在一定的范围内.This inv...
There may be a need for retarding growth chemically to keep trees within bounds.可能需要用化学剂抑制生长,使树冠保持在一定的范围内.This invention relates to the field of concrete complex super - retarding water reducers.本发明涉及一种复合混凝土超缓凝减水剂领域.In t...
The alkylation of isoparaffin with olefin is an important process of petroleum processing.异构烷烃与低分子烯烃的烷基化反应是石油加工的重要过程之一.Recent advances in ring closing metathesis ( RCM ) reaction, including olefin and enyne metathesis re...
This shop sells fluorescent paint.这家商店出售荧光漆.Our company specializes in producing electronic ballasts of efficiency fluorescent illumination products.本公司是一家专业从事自主研发高性能荧光灯电子镇流器的生产厂家.The detective saw him near the pet shop ...