问题 问答题

对喷塑涂料材料有哪些要求

答案

参考答案:(1)底油:乙烯一丙烯酸酯是聚乳液,要求即能耐碱耐水,又能增加骨料与基层的粘结力。
(2)骨料应存放在于燥通风库房,贮存温度0℃以上,若发现有冻结,可放在屋内较暖和处解冻,经检查合格后方可使用。涂料应达到在常温下浸水六个月或在常温下浸泡和氢氧化钙溶液15d反复涂层不脱落的要求。
(3)面油:用0.5%皂液刷洗4000次不露底,常温下浸水24h粘结强度仍达0.7MPa左右。

阅读理解
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By teaching your children fire safety rules you can ensure they know what to do when a house fire occurs. Making sure your children know exactly what is required of them cuts down the chaos of the emergency situation and helps keep your family safe and secure.
All children should know about important fire safety procedures. For example, tell your children to stay low to the ground in a smoky room, which keeps them from breathing smoke, as smoke always rises towards the ceiling. Also tell them that they can put a damp towel or a piece of clothing over their faces and breathe in through it to cut down the effects of breathing smoke even more.
In addition, make sure your children know how to correctly stop, drop and roll when their clothes catch fire. Because it results in loss of oxygen, which puts out the flames. Also your children should know to touch door handles before opening the doors to see if they’re hot. If they are, it means there’s a fire in the next room, and they should leave the door closed and find another route out of the house.
Make sure your children never play with lighters or matches. Usually, many children are attracted by lighters and matches and want to experiment with setting things on fire to see what happens. So hide lighters and matches in some place your children can’t reach.
Do regular fire drills to act out and improve your evacuation(疏散)plan. Make sure everyone knows all the possible exits of the house they can use, and that all members of your family know your evacuation plan well enough so that they don’t have to waste time thinking if a fire starts. Quick, determined response to a fire will save your family members’ lives.
                       Title: Teach your children fire safety rules
Reasons
Children should know what to do in __小题1:___ of a house fire.
It can help __小题2:___ the chaos of the emergency situation.
Teach children fire safety ___小题3:__
Stay low to the ground and __小题4:___ the face with damp towels or pieces of clothing.
Correctly stop, drop and roll to put out the fire on the ___小题5:__.
Don’t open the doors with ___小题6:__ door handles.
Keep lighters or matches away from children
It’s dangerous to ___小题7:__ with setting things on fire.
Keep lighters and matches out of children’s ___小题8:__.
Do fire drills ___小题9:__
Make all exits and the evacuation plan known to everyone.
Ensure every family member can __小题10:___ to a fire quickly and determinedly.
单项选择题 A1/A2型题