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- Liquid fermentation for nattokinase by Bacillus subitilis natto BSN was investigated. The components of its culture medium including carbon source,nitrogen source,the ratio of carbon source to nitrogen source and ion composition were studied. 以纳豆枯草芽孢杆菌(Bacillus subitilis natto)为出发菌株,对其液体发酵生产纳豆激酶(Nattokinase,NK)的培养基组成(碳源、氮源、碳氮比和金属离子组成)和培养条件(温度、pH值,发酵时间、接种量和装液量)对产酶量的影响进行了研究。
- Anti-radiation polyetherketone wi th cardo group(PEK-C)based self-lubricat ion composite material was prepared with Mos2, graphite, carbon fiber and Laf3 . 采用二硫化钼、石墨、碳纤维和氟化镧研制了一种抗辐照的酚酞聚芳醚酮基自润滑复合材料。
- Effect of Electrolyte Ion Composition on Coating Performance for Light Alloy 电解质离子成分对轻合金形成涂层性质的影响
- He sweated out his composition in several hours. 他苦干了几个小时才写出了作文。
- He wrote a composition or (he) read an essay. 他写作文或读散文。
- His composition is far superior to mine. 他的作文比我的好多了。
- Multiple ions composite diffusion coating equipment included furnace body, glow discharge power, arc power, water cooling system, vacuum system and detecting system etc. 摘要多元离子复合渗镀设备是由炉体、辉光电源、电弧电源、水冷系统、真空系统和监测系统六部分组成;
- A slow, mournful musical composition. 庄重悲哀的乐曲节奏缓慢,庄重悲哀的音乐作品
- He has a touch of madness in his composition. 他有点疯疯癫癫。
- I'd like to have your advice on my composition. 我想请您对我的作文作些指导。
- She looked at her son's composition with a frown. 她对儿子的作文皱眉头。
- The composition of the report took two months. 写这份报告花了两个月时间。
- We examined the rock to find out its composition. 我们检验了这一石块,想弄清它的构成成分。
- We sailed from Perth with a cargo of raw ion. 我们装着一船生铁从佩思启航。
- He has a touch of stubbornness in his composition. 他脾气有点倔。
- Salt accumulation, translocation and ion composition in greenhouse soil profiles 设施土壤盐分的累积、迁移及离子组成变化特征
- You've made several grammatical mistakes in the composition. 你的作文中犯了几处语法错误。
- A composition in verse rather than in prose. 诗篇以诗歌而非散文形式的文章
- Both of these particles can produce ion pairs. 这两种粒子都能产生离子对。
- A composition written or arranged for these bells. 钟乐为在排钟或钟琴上演奏而谱的曲
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries