问题 问答题 简答题

使用砂轮切割机应注意哪些事项?

答案

参考答案:

使用砂轮切割机应注意:

(1)使用砂轮切割机前要认真检查切割机的完好情况,要有电气试验合格证,不合格的不准使用;

(2)必须使用合适的漏电保护开关,并安装接地线;

(3)使用前检查各紧固件是否松动,砂轮片有无裂纹等;

(4)砂轮片的规格要符合砂轮切割机的铭牌要求,以免电机过载;

(5)操作要均匀平稳,不能用力过猛,以免过载或砂轮片崩裂;

(6)使用中若有尖叫声、嗡嗡声或其它杂音时,应立即停下,查明原因,方可再用;

(7)工作人员操作中要戴防护眼镜。

(8)切割屑要妥善防护,防止火灾事故发生。

填空题
单项选择题

Some politicians are scurrying about with much zest and anticipation. It’s time, their polls inform them, to find the quick fix for what they have determined is a society plagued by the irregular heartbeat of deficient values.

But there are contradictions that intrude on this denunciatory atmosphere. If there are moral omissions in the society, they cannot be sealed by instant, slenderly based attacks on entertainment. The plain fain fact is we are rearranging our priorities in the wrong way.

We are today misplacing our energies and our funding by directing all sorts of incentives to high schools and colleges. Too late. The moral scaffolding has been built by then, for better or worse. How then to begin this revision of life conduct We must introduce in pre-school, and keep alive through grade five, a new school course.

The course could be titled, "What is right, and what is plainly wrong. " For 30 minutes each day, the teacher would illuminate for these very young children what William Faulkner labeled "the old verities", the words that construct and implement the daily moral grind in every durable society must engage if it is to be judged a "just" society.

These are words like duty, honor, service, integrity, pity, pride, compassion and sacrifice, plus the clear admonition that violence is wrong. To the teaching of the meaning of those words must be added that cleansing rule of treating other people as you would want them to treat you. And most of all to make sure that these kids understand with growing clarity that home, school and church are the sanctuaries for their later life.

There is a grand simplicity to this kind of school course. It enters a child’s mind early, burrowing deep into those recesses of the human brain that even today advanced medical science has not been able to penetrate.

If you ask enough people, you will find that most of us remember our first-or second-grade teacher. I remember Miss Corbett and Miss Walker, who read to us before we really understood, but the words had weight and allure. We listened and, without really knowing it, we learned and saved what we learned. Perhaps it was because what we heard in those early school years was the first entry into our learning vessel.

Absent this kind of early instruction, absent the building of this moral shield, no congressional law, no presidential executive order, no fiery rhetoric will salvage a child’s conduct nor locate a missing moral core.

With respect to the rectification of the situation the author believes that().

A. it’s easy to carry moral education at and above high school level

B. high school students don’t need any further moral education

C. no return is to be gained on the investment in moral education

D. moral education in primary school or still earlier should be much emphasized