问题 问答题 论述题

跳汰周期后期应当注意?

答案

参考答案:

其关键技术是调节相对细粒的穿隙流动和控制透筛排料量。它们都受控于吸啜过程开始的时机和吸啜力的强弱。跳汰司机的操作技术是正确处理床层厚度与排气过程的相互关系,或者说是妥善处理物料密集规律与细粒流动特性的合理匹配。床层密集期以“随机筛分”过程为主。由于物料颗粒压强分层的结果,各密度级的细粒分布在粗粒的上层,普遍需要向下移动。下移的前提是,下层粗粒之间有容纳细粒的空间,这个空间的大小决定于下降流开始的时机。吸啜开始时,粗粒的间隙越大,所容纳的细粒的相对粒度也大,数量也多。另外还决定于已经充塞在粗粒之间的细粒是否提前透下去,为后来者让出空间。

阅读理解

Happiness through Honorable Actions

Do you want to live with a strong sense of peacefulness, happiness, goodness, and self-respect? The collection of happiness actions broadly categorized as “honor” help you create this life of good feelings.

Here is an example to show how honorable actions create happiness.

Say a store clerk fails to charge us for an item. If we keep silent, and profit from the clerk’s mistake, we would drive home with a sense of mean excitement. Later we might tell our family of friends about our good fortune. On the other hand, if we tell the clerk about the uncharged item, the clerk would be grateful and thank us for our honesty. We would leave the store with a quiet sense of honor that we might never share with another soul.

Then, what is it to do with our sense of happiness?

In the first case, where we don’t tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. In the process, we would lose some peace of mind and self-respect. We would also demonstrate that we cannot be trusted, since we advertise our dishonor by telling our family and friends. We damage our own reputations by telling others. In contrast, bringing the error to the clerk’s attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased. Whenever we take honorable action we gain the deep internal rewards of goodness and a sense of nobility.

There is a beautiful positive cycle that is created by living a life of honorable actions. Honorable thoughts lead to honorable actions. Honorable actions lead us to a happier existence. And it’s easy to think and act honorably again when we’re happy. While the positive cycle can be difficult to start, once it’s started, it’s easy to continue. Keeping on doing good deeds brings us peace of mind, which is important for our happiness.

小题1: According to the passage, the positive action in the example contributes to our ______.

A.self-respect

B.financial rewards

C.advertising ability

D.friendly relationship小题2:The author thinks that keeping silent about the uncharged item is equal to ______.

A.lying

B.stealing

C.cheating

D.advertising小题3:The underlined phrase “bringing the error to the clerk’s attention” means ______.

A.offering advice to the clerk

B.telling the truth to the clerk

C.asking the clerk to be more attentive

D.reminding the clerk of the charged item小题4:How does the positive cycle work according to the author?

多项选择题