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- Methods:Under solid state fermentation,effects of factors such as carbon and nitrogen resources,inorganic salt and incubating conditions on pectinesterase production were studied. 方法:通过固体发酵,考察碳氮源、无机盐及培养条件等因素对产酶的影响。
- Keywords vitaminB12,carbon resource,nitrogen resource,fed-batch,propionic acid; 维生素氏;碳源;氮源;补料;丙酸;
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- INFLUENCE OF NITROGEN RESOURCE DOSAGE ON DEGRADATION EFFICIENCY OF WHITE-ROT FUNGI TO POPLAR WOOD 氮源用量对杨木白腐菌降解效率的影响
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Production of high-analysis compound fertilizer by use of ABC as nitrogen resource to replace part of urea 以碳酸氢铵代替部分尿素生产高浓度复混肥
- Keywords lactic acid bacteria （LAB）;exopolysaccharide （EPS）;carbon resource;nitrogen resource;metal cations;glycohydrolase;fermented milks; 乳酸菌;胞外多糖;碳、氮源;金属离子;多糖水解酶;发酵乳;
- Immeasurable quantity of natural resource was lost forever through misuse. 无法估量的自然资源因被滥用而永远丧失了。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- Water is an essentially nonrenewable resource. 水是一种不能再生的资源。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- The degree to which a system or resource is ready when needed to process data. 在需要处理数据时，系统或资源就绪的程度。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- A key resource to be used at an opportune moment. 王牌适当时刻所用的关键手段
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
- Unresolved contention for the use of a resource. 为使用同一资源而产生的无法解决的争用状态。
- 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
