Simone问题补充说明：The varying rates of thermal expansion are the basis of the bimetal thermostat. The metal stripe of the thermostat have greatly different thermal expansion coefficients. When they are bonded together and heated, the metal with the high expansion rate elongates much more than the other strip. This causes the strips to bend and touch the contact point. The lead screw goes through a pair of half nuts, which are fixed to the rear of the apron. When actuating a certain lever, the half nuts are clamped together and engage with the rotating lead screw as a single nut, which is fed, together with the carriage, along the bed. The width of cut is the width of the workpiece in contact with the cutter in a direction normal to the feed. We can easily see that the width of cut should decrease with increasing depth of cut to keep the load and power requirement below those that can be met by the cutter and the machine tool, respectively. The control unit coordinates the operations of all the other components. It controls the input and output information between the computer and the outside world through the I/O section, synchronizes the transfer of signals between the various sections of the computer, and commands the other sections in the performance of their functions.
不同利率的热膨胀是列升块变第叫笔织今怀然根据双金属恒温。金属条纹的自动调温器有很大的不同热膨胀系数。当他们粘结在一起，加热，金属与高膨胀率鱼远远超过其他地带。这将导致带弯曲和触摸的联络点。
在丝杠不用通过对坚果的一半，这是固定在后面的停机坪。当驱动有一定的杠杆，一半是固定螺母一起，并与旋转丝杠作为一个单一的槟榔，这是喂食，加上运输，沿床。
的宽度将是宽度的工件接触刀具的方向正常的饲料。我们可以很容易地看到，宽度减少应随深度的增加将保持负荷和功率要求低，可满足刀具和机床，分别。
控临来压算国抗伤编剧制单元协调行动的所有其他组件。它控制的输入和输出之间的信息计算机与外部世界通过的I/O部分，同步传输的信号之间的各款电脑，并命令其他各科在履行其职能。
