The shikonin and its derivatives is produced by suspension cultured Lithospermum erythrorhizon cells in M 9 medium.紫草是一种重要的中草药材,其培养细胞在M9培养基中可以大量生产主要的药物成分紫草宁....
Volunteers have identified amazingly subtle features in the aerogel collectors.志愿者识别出了气凝胶中令人惊异的细微结构.Q. Why was aerogel used on Stardust?问: 为什么“星辰”要使用气凝胶 呢 ?Next, find the surface of the aerogel.然后, 搜寻气凝胶的表面....
Whisk the egg whites until they are foamy but not stiff.把蛋清搅至起沫而不黏稠的程度。Using a whisk, mix the yolks and sugar to a smooth paste.用打蛋器将蛋黄和糖打成均匀的糊状。Whisk 25g .1 oz. of butter into the sauce.把25克（即1盎司）黄油搅拌到酱汁里。...
The school offers after-hours childcare.学校提供课后托管孩子的服务。Both partners shared childcare.这对伴侣分担照看孩子的责任。childcare facilities for working parents为职业父母提供的照管儿童的设施...
He suffered martyrdom by stoning.他被处以石刑，以身殉难。She sat picking at her small plate of rice salad with an air of martyrdom.她坐在那里一点点地吃着一小盘米饭色拉，一副可怜兮兮的模样。I have suffered a martyrdom from their incompetency and caprice.他们的无能和任性...
频繁服用安眠药绝对不是好办法。It is never a good idea to take sleeping tablets regularly.我被人下了安眠药。I'd been doped with Somnolin.她一直在服用安眠药。She's been taking sleeping pills....