采用发泡剂AK制作了硅橡胶海绵.Blowing agent AK was used to preparing silicone rubber sponge.加入发泡剂后应与基础渣搅拌混匀.Please mill completely with basic slag after add this agent.将粉煤灰加入到熔融铝液中,经适当搅拌后,再加入发泡剂,经冷却,即可得到颗粒增强泡沫铝.Fly ash particles act a...
有些人住在建筑质量很差的宿舍里，甚至帐篷里。Some are living in poorly built dormitories, even in tents.他是个空有一番好意但能力很差的主管。He is well-intentioned but a poor administrator.这个脏房间的条件是很差的.The condition of this dirty room is deplorable....