PBB

Prenatal and postnatal PbB levels and their effects on infant growth were analysed .

分析出生前后铅暴露水平对婴幼儿体格发育的影响。

Under strict quality control , the authors investigated the levels of PbB among 270 women from early pregnancy to delivery and their infants .

在严格的质量保证措施下，对北京石景山地区270名孕妇及其婴儿进行了血铅的追踪调查。

Objective To realize the changes of blood lead ( PbB ) levels and blood cadmium ( CdB ) levels and the status of exposure to lead and cadmium in provincial capitals and counties .

目的了解人体血铅血镉的变化和县镇人群铅镉暴露的状况。

The content of PBB-PA / Sb2O3 had little effect on the tensile strength of ABS compared with PBB / Sb2O3 . The addition of PBB-PA improved the impact property .

与PBB/Sb2O3相比，PBB-PA/Sb2O3的用量对ABS的拉伸强度影响较小，并且PBB-PA的加入能够改善ABS的冲击性能。