问题 问答题 简答题

铝合金龙骨吊顶在实际操作中怎样固定吊杆?

答案

参考答案:

固定吊杆。铝合金龙骨吊顶的吊件,目前使用最多的使用膨胀螺钉或射钉固定角钢块,通过角钢块上的孔,将吊挂龙骨用的镀锌铁丝绑牢在吊件上。镀锌铁丝不能太细,如使用双股,可用18号铁丝,如果用单股,使用不宜小于14号铁丝。悬吊也可以用伸缩式吊杆。伸缩式吊杆的型式较多,用的较为普遍的是8号铅丝调直,用一个带孔的弹簧钢片将两根铅丝连结起来,调节与固定主要是靠弹簧钢片。用力压弹簧钢片时,将弹簧钢片两端的孔中心重合,吊杆就可伸缩自由。当手松开后,孔中心错位,与吊杆产生剪力,将吊杆固定,操作非常方便。

阅读理解

阅读理解。

     I know what you're thinking: pizza (比萨饼)? For breakfast? But the truth is that you can have last

night's leftovers in the a.m. if you want to.

     I know lots of women who skip breakfast (不吃早饭), and they have a ton of different excuses for

doing it. Some say they don't have time, others think they're "saying" calories (卡路里), still others just

don't like breakfast food.

     But the bottom line is that eating in the morning is very important when you're trying to lose weight.

"Eating just about anything from 300 to 400 calories would be better than nothing at all," says Katherine

Brooking, R.D., who developed the super-easy eating plan for this year's "SELF CHALLENGE". And

even pizza can be healthy if it's loaded with vegetables, and you stick to one small piece.

     Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research

shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of

Southern California found that breakfast skippers have a bigger chance of gaining weight than those who

regularly have a morning meal.

     So eat something in the morning, anything. I know plenty of friends who end up having no breakfast

altogether, and have just coffee or orange juice. I say, try heating up last night's leftovers-it may sound

crazy, but if it works for you, do it! I find if I tell myself, "You can always eat it tomorrow." I put away

the leftovers instead of eating more that night. Try it … you may save yourself some pre-bedtime calories.

And watch your body gain the fat-burning effects.

1. The word "leftovers" in paragraph I probably means _____.

A. food remaining after a meal

B. things left undone

C. meals made of vegetables

D. pizza topped with fruit

2. What can we infer from the text?

A. Working women usually have breakfast in a hurry.

B. Many people have wrong ideas about breakfast.

C. There are some easy ways of cooking a meal.

D. Eating vegetables helps save energy.

3. According to the last paragraph, it is important to ______.

A. eat something for breakfast

B. be careful about what you cat

C. heat up food before eating it

D. cat calorie-controlled food

4. The text is written mainly for those ______.

A. who go to work early

B. who want to lose weight

C. who stay up late

D. who eat before sleep

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