槽线（trough line）是指低压槽中等压（高）线气旋性曲率最大而具有最低气压（或位势高度）各点的连线。槽线是低压槽内气流水平辐合最强的地区。通常在槽线附近的天气变化比较明显，这种特征使它在天气预报中占据着非常重要的位置。槽线识别方法包括人工识别和自动识别。
外部槽线与管体经由二次模压成型，固化工艺也做了相应调整。
External trough line and the tube are through a second compression molding, and the curing process is also made the appropriate adjustments.
采用进口预浸布作为原材料，槽线与管体二次固化整体成型，表面光洁度和力学性能优异。
Using Imported Prepreg as the Raw Material, the Second Overall Compression Molding for External Trough Line and the Tube, Excellent Surface Finishment and Mechanical Performance.
介绍了风动潜孔刻槽机的工作原理、槽线参数和机械特征，及其在石材矿山的应用情况及发展前景。
The principle of operation, trough-line parameters and mechanical characteristics are introduced. Its application in stone mines is introduced.
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