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i5系统误差补偿技术领先、控制精度达到纳米级、使用i5系统的机床产品在不用光栅尺反馈的情况下其精度可通过补偿优化达到3μm。
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开环进给伺服系统控制机床，其特点是()A、有一个反馈系统多用于高精度数控机床B、反馈信号取自伺服电动机的回转，排除机械传动的影响C、系统只按数控装置的指令脉冲进行工作，而对执行结果不检测和反馈D、可对螺距误差进行补偿
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误差补偿法是人为制造一个大小相似，方向相反的误差，以补偿原有的原始误差，提高加工精度，在成批大量生产中此法能用以（）。A、补偿常值系统误差B、补偿变值规律性误差C、补偿随机误差D、补偿所有的误差
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Companycom has several AS/400 servers in their IT infrastructure running V5R2 that they wish to consolidate. The customer wants to simplify their environment and install i5/OS on a p5 590 with 16 1.65GHz processors and 20 i5/OS partitions. The customer plans to use the Advanced Power Virtualization to share their storage, processors, and memory. What considerations and limitations should be reviewed with the customer before the purchase?（）A、Resources cannot be shared with an i5 partition when it is put on a pSeries. The i5 partition needs its own 9411-100 tower because of IOP. V5R3 OS or later is required. There is a maximum of two partitions in a 590.B、Resources cannot be shared between partitions when i5/OS is put on a pSeries. The i5 partition needs its own 9411-100 tower because of IOP. i5/OS can be at V5R2 or a V5R3. Currently only one i5 partition is allowed. C、V5R3 is required for the i5 partitions. Virtual IO Server is not supported for the i5/OS partitions to share storage. Up to 10 i5 partitions per processor are allowed (a maximum of two processors for up to 20 partitions). D、Processor and memory resources can be shared between AIX 5L, Linux and i5/os partitions. i5/OS needs to be at V5R3, and Virtual IO Server is not supported for the i5/OS partition to share storage. On a 1.65 GHz POWER5 p5 590 there is a maximum of one partition.
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