| 序号 | 英文主题词 | 中文主题词 | 命中文献数量（篇） |
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| 期刊 | 博硕士论文 | 会议论文 | 报纸 | 年鉴 | 成果 | 专利 | 国家标准 | 行业标准 | 标准 | 总计 | | 3441 | Pyrithiamine | 吡啶硫胺 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | | 3442 | Pyrithioxin | 吡硫醇 | 76 | 0 | 2 | 1 | 1 | 0 | 15 | 0 | 0 | 0 | 95 | | 3443 | Pyritum | 自然铜 | 558 | 6 | 48 | 21 | 1 | 0 | 4 | 0 | 0 | 0 | 638 | | 3444 | Pyrobaculum | 热棒菌属 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3445 | Pyrococcus | 焦球菌属 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3446 | Pyrococcus abyssi | 深海火球菌 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3447 | Pyrococcus furiosus | 火球菌属 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3448 | Pyrococcus horikoshii | 超嗜热火球菌 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3449 | Pyrodictiaceae | 热网菌科 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3450 | Pyrogallol | 焦没食子酚 | 665 | 2 | 69 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 738 | | 3451 | Pyrogens | 热原 | 3139 | 3 | 94 | 42 | 6 | 9 | 8 | 0 | 0 | 3 | 3304 | | 3452 | Pyroglobulins | 热球蛋白类 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 3453 | Pyroglutamate Hydrolase | 焦谷氨酸水解酶 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | 3454 | Pyroglutamyl-Peptidase I | 焦谷氨酸肽酶Ⅰ | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | 3455 | Pyroglyphidae | 房尘螨科 | 1820 | 36 | 119 | 142 | 5 | 16 | 5 | 0 | 0 | 0 | 2143 | | 3456 | Pyrola | 鹿蹄草属 | 575 | 1 | 51 | 26 | 1 | 2 | 2 | 0 | 0 | 0 | 658 | | 3457 | Pyrolaceae | 鹿蹄草科 | 578 | 1 | 51 | 26 | 1 | 2 | 2 | 0 | 0 | 0 | 661 | | 3458 | Pyrones | 吡喃酮类 | 22 | 11 | 2 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 39 | | 3459 | Pyronine | 派罗宁 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | | 3460 | Pyrophosphatases | 焦磷酸酶类 | 41 | 5 | 10 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 58 |
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