2026-03-22 09:46 浏览次数 31
六角环
six mirror ring cavity六镜环形腔
six phase ring connection六相环形接
six-carbon ring六元碳环
six membered ring六员环
six membered chelate ring六员螯环
Six P Ring六棱形环
six-ring binder六环活页文件夹
six mbered ring六元环
Four, five and six ring PAHs have greater carcinogenic potential than do two, three or seven ring PAHs.
四,五和六环多环芳烃比二,三和七环的多环芳烃有更强的致癌作用。