| 1. | Influence of roof bedding characteristic to first weighting interval
老顶分层厚度对工作面初次来压步距的影响 |
| 2. | Probe of reducing top coal loss by using of cutting top coal first fall interval
减少顶煤初垮步距降低煤损的探讨 |
| 3. | The select principle of drawing interval was given for different coal - gangue fragmental size
给出了不同煤矸块度条件下的放煤步距选取原则。 |
| 4. | Panel set up the output frequency , the output frequency can be 49 - 860mhz between 125khz distance
5输出频率面板设置，输出频率可在49 - 860mhz之间，步距125khz |
| 5. | If stock does not start against a pitch notch ( positive stop ) a start mark for first hit will be necessary
如果条料没有步距开口槽（正极停止）送进，首次冲压条料送到位置的标记是有必要的。 |
| 6. | The electrode is driven by elliptical movement and its direction is controlled by t wo voltage phase - difference
为实现电火花电极的微米级步距，设计了椭圆微驱动电路，并能有效地控制电极的运动方向。 |
| 7. | 1 . full automation synchronous electronic puller is a combination of puller assembly , self - motor , microcomputer stitch length control panel
1 .全自动同步电子拖轮由拖轮组件马达微型计算机步距控制仪组成。 |
| 8. | The method is phase shifting with four any steps in a facultative interval . and get the parameter in combining with grouping disposal
这种方法采用步距任意的四步步进移相，并结合分组处理方式来求得所需参数。 |
| 9. | The driving system is controlled with microprocessor . it is easy to realize sin even subdivided driving and to obtain any wanted stepping by programming
驱动系统采用微机控制，灵活方便的用软件实现正弦波均匀细分和任意步距角。 |
| 10. | Combinatorial key stratum is the development of key stratum in shallow coal seam , it has the all properties of key stratum and itself ’ s property
摘要在分析组合关键层有关参数的基础上，推导出了组合关键层初次来压步距和周期来压步距的计算公式。 |
