通过改变槽的个数和深度，得到同轴波导内开槽的优化参数。
The parameters like the number and the depth of the inner slotted are optimized.
最后用间断磨削的原理，对砂轮开槽的作用，以及它对砂轮性能的影响进行了分析。
Based on the analysis of discontinuous grinding, the effect of the grooves and their influence on the characteristics of the wheel are discussed.
这个机器像个高速旋转中开槽的黑胶唱片，别看它又大又厚，却能清除水面上90%的油，运作时还不会漏油。
The machine looks like a giant, thick, grooved vinyl record spinning at high speed to capture nearly 90 percent of the oil on the waters.
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