The pesticidal and bactericidal effects of ginkgolic acid extracted from Ginkgo exocarp was studied.从银杏外种皮中提取的银杏酚酸和白果酚有杀虫、杀菌作用.The change of fruit anatomical structure shows cell of exocarp, sarcocarp and endocarp divisi...
Sinter type fastigiate - handle drills: Use for drilling and brickle material such as glass, ceramics etc.产品描述:烧结锥柄钻头: 适用于玻璃 、 陶瓷等硬性材料的钻孔.On the basis porous carbon , the reactive sintering silicon carbide ceramics were ...
He also very frequently filled the post of head godfather in baptisms of the subtly - jovial kind.他也经常在那种微妙快活的洗礼中充当首席教父.There were six baptisms at this church last week.上星期这个教堂为六个人施行了洗礼....