Besides increasing the catalyst activity, the pre-polymerization can not only raise the bulk density and isotacticity of the PP product, but also significantly diminish the cracking of the PP powders.

预聚除能够提高催化剂的活性外，对提高聚丙烯粉料的表观密度和等规指数、减少聚丙烯颗粒的破碎有显著影响。

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So we are investing in a variety of things to try to improve oversight of what the federal government buys, including cracking down on no-bid contracts, trying to bulk up on bulk purchases of goods and services, and also expanding the acquisition workforce so that we have better oversight of those contracts.

WHITEHOUSE: Detailing the FY2011 Budget