Begonias are prized equally for their flower as well as their showy leaves.海棠花之所以得到很高的赞赏也有它漂亮叶子的功劳.A flock of sheep had got into the garden and trampled down his begonias.一群羊闯进了花园,踩倒了他的秋海棠.Begonias, geraniums and clods o...
Using benzene as internal standard, the calibration factors of derivative of aldehydes 2,4 - dinitrophenylhydrazine ( DNPH ) were measured.将醛类物质与2, 4- 二硝基苯肼 ( DNPH ) 的衍生反应液直接进样,以苯为内标物,测定了甲醛 、 乙醛等醛类物质DNPH衍生物的校正因子....
You heard about the diocese of Camden?你听到关于卡姆登教区的事了 吗 ?The diocese of D ---- is a fatiguing one.迪 涅 教区是个苦地方.There had been various rumors the moment he arrived in the diocese.他一进入主教辖区就有各种各样的谣言传出.He was ordained bishop an...
从亚细胞部分制备RNA,可使专一的mRNA序列的丰度提高.Specific mRNA sequences can be enriched for by preparing the RNA from subcellular fractions.土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力.The abundance and availability of water and nutrients in a soil ecosyste...