杠

The hardware system of this machine is as follow: taken AC-servo-motor as power, taken ball screw as driving equipment, taken position transducer as feedback source gainer. The CPU of UP-PC is used of embedding chip, PXA-255 ofInter, and its system board is directly used of Intel's Sitsang board. On the other hand, the CPU of DOWN-PC is chosen of PMAC-104,which is the product of Motorola.

本铣床系统硬件构成如下：动力源选用交流伺服电机，传动装置采用丝杠，反馈量由位置传感器获得，上位机的处理器为嵌入式芯片Intel公司SXcale架构的PXA-255，上位机的系统板直接选用Intel公司的Sitsang板，下位机选用Motorola公司的运动控制器PMAC-104。

Number of loaded circuits DN Value Preload Method for Providing a Preload Applied preload 3 row 1.00 turns 50000 Yes Constant Pressure Preload 1110 Type of guide Shaft process method Ball cage Splined portion Hollow shaft Ball Rolled None None None Recommended support unit on the Fixed Side type Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball BK30,FK30 BF30, FF30 Simple Nut Right-hand None Rigi...

载荷钢球圈列数 DN值预压预压方法预压负荷 3列 1.00圈 50000 有定压预压 345 导轨型号丝杠轴加工方式球保持器轴的花键部分中空轴滚珠滚轧无无无轴承支撑座固定侧的推荐方式轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球 BK15，BK17，BK20，EK15，EK20，FK15，FK20 BF15， BF17， BF20， EF15， EF20， FF15， FF20 简易螺帽右螺纹无轴方向刚性

At one time some cock-chafers flew in; but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and conscientious application, as if even the lines were French. On the roof of the schoolhouse, pigeons cooed in low tones, and I said to myself as I listened to them

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：&他们该不会强迫这些鸽子用德语唱歌吧？&

With their straight lines, with a will and conscientious application, as if even the lines were French. On the roof of the schoolhouse, pigeonscooed in low tones, and I said to myself as I listened to them

志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：他们该不会强迫这些鸽子用德

At one time some cock-chafers flew in; but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and conscientious application, as if even the lines were French. On the roof of the schoolhouse, pigeons cooed in low tones, and I said to myself as I listened to them:"I wonder if they are going to compel them to sing in German too!" http://zw.go121.cn

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：&他们该不会强迫这些鸽子用德语唱歌吧？&

At one time some cock-chafers flew in;but no one paid any attention to them, not even the little fellows who werestruggling with their straight lines, with a will and conscientious application,as if even the lines were French. On the roof of the schoolhouse, pigeons cooedin low tones, and I said to myself as I listened to them:"I wonder if they are going to compel them to sing in German too!"

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：&他们该不会强圃烩些鸽子用德语唱歌吧？&

At one time some cock-chafers flew i but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and co cientious a lication, as if even the lines were French. On the roof of the schoolhouse, pigeo cooed in low tones, and I said to myself as I listened to them:I wonder if they are going to compel them to sing in German too!

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：他们该不会强迫这些鸽子用德语唱歌吧？

At one time some cock-chafers flew in; but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and conscientious application, as if even the lines were French. On the roof of the schoolhouse, pigeons cooed in low tones, and I said to myself as I listened to them:I wonder if they are going to compel them to sing in German too!

只听得见笔尖在纸上的沙沙声有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：他们该不会强迫这些鸽子用德语唱歌吧？

At one time some cock-chafers flew in; but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and conscientiousapplication, as if even the lines were French. On the roof of the schoolhouse, pigeons cooed in low tones, and I said to myself as I listened to them:"I wonder if they are going to compel them to sing in German too!"

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：&他们该不会强迫这些鸽子用德语唱歌吧？&

At one time some cock-chafers flew in; but no one paid any attention to them, not even the little fellows who were struggling with their straight lines, with a will and conscientious application, as if even the lines were French. On the roof of the schoolhouse, pigeons cooed in low tones, and I said to myself as I listened to them:FH"I wonder if they are going to compel them to sing in German too!"

有一回，几只金龟子跑进了教室，但是谁也不去注意它们，连年龄最小的也不例外，他们正专心致志地练直杠笔划，仿佛这些笔划也是法语……学校的屋顶上，鸽子低声地咕咕地叫着，我一边听，一边寻思：&他们该不会强迫这些鸽子用德语唱歌吧？&

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！