productive life cycle 产品生命周期
The performance of the sows is affected in different stages of the productive cycle.
母猪的生产 性能受繁殖周期各个不同阶段的影响。
Because it is imposed in multi-links of the productive cycle, the gain can be ensured, and it does not distort the policy making.
因为它是对生产周期多环节征收的税种，因而收入得到保障，并且增值税没有扭曲生产决策。
These dies are shorter in productive cycle and lower in cost than machined dies. A good developing prospect about these dies has been shown.
精铸模具与机加工模具比较，生产周期短，制造成本低，故有很好的发展前景。
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