问题
问答题 简答题
什么叫插补？插补有哪几类？
答案
参考答案：
机床的数控系统，根据给定曲线的数学模型，在理解的轨迹或轮廓上的起点与终点之间需计算出若干个中间点的坐标值，这一数据的密化工作称为插补。
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什么叫插补？插补有哪几类？
参考答案：
机床的数控系统，根据给定曲线的数学模型，在理解的轨迹或轮廓上的起点与终点之间需计算出若干个中间点的坐标值，这一数据的密化工作称为插补。
| Stress is with us all the time. It comes from mental or emotional activity as well as physical activity. It is unique and personal to each of us. So personal, in fact, that what may be relaxing to one person may be stressful to another. For example, if you’re a busy executive who likes to keep occupied all of the time, "taking it easy" at the beach on a beautiful day may be extremely frustrating, nonproductive, and upsetting. You may be emotionally distressed from "doing nothing." Too much emotional stress can cause physical illnesses such as high blood pressure, ulcers, or even heart disease. Physical stress from work or exercise is not likely to cause such ailments. The truth is that physical exercise can help you to relax and to better handle your mental or emotional stress. |
One method mentioned to help handle stress is ______.
A．physical exercise
B．tranquilizers
C．drugs
D．taking it easy