这种方法比较简单可靠，尤其是对于缺少三座标数控铣床设备的工厂，制作滚珠丝杠付加工回珠槽时，可供参考。
This simple but accurate method is useful in machining a ball-lead-screw, especially when no dimensional numerical-control milling machine is available.
这部分货物由业主选择购买，其费用评标时供招标机构参考。
The owner has the option to purchase these goods, the price of which will serve as reference for Tenderee at tender evaluation.
这部分货物由业主选择购买，其费用评标时供招标机构参考。
The owner has the option to purchase these goods, and their expenses will be referred to at the tender evaluation.
这部分货物由业主选择购买，其费用评标时供招标机构参考。
The owner has the option to purchase these goods, and their expenses will be referred to at the tender evaluation.
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