The PPI is formulated into a core material in the form of pellets, which are coated i. a. with a combination of a delayed release modifying layer and a lag time controlling layer.

将PPI制成小丸形式的芯材，小丸尤其用延释改进层和滞后时间控制层的组合包衣。

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Excluding food and energy costs, the core PPI rose 0.1 percent, less than economists expected.

FORBES: Daily Wrap

Up 0.3%, core PPI was boosted by a rebound in the vehicle components.

FORBES: PPI Shows Easing Pent Up Inflation, Giving Bernanke More Room

The surprise in this report, though, was the bigger than expected jump in core PPI, which excludes food and energy.

FORBES: PPI Shows Easing Pent Up Inflation, Giving Bernanke More Room