With a larger screen and superior games, the PSP could have rivaled the iPod. The PSP's development, however, was partially hobbled by not offering digital content for download.
比较苹果的iPod，PSP游戏机屏幕更大，还有质量上佳的游戏可玩，本可与iPod一争高下，不过却由于没有提供数字内容下载服务而受到影响。
Methods: With collection of the data of Nassidae food poisoning in recent years, the paper applies the biological determining method to test the content of PSP in the meat of Nassidae.
方法：收集近年织纹螺中毒资料，对连云港地区织纹螺进行形态学鉴定。应用生物测定法检测螺肉中麻痹性贝类毒素（PSP）含量。
Methods: With collection of the data of Nassidae food poisoning in recent years, the paper applies the biological determining method to test the content of PSP in the meat of Nassidae.
方法：收集近年织纹螺中毒资料，对连云港地区织纹螺进行形态学鉴定。应用生物测定法检测螺肉中麻痹性贝类毒素（PSP）含量。
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