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- This fact gives evidence that amino-N is the direct N source for protein synthesis. 这一事实表明,氨基氮是蛋白合成的直接氮源。
- The reasons of low free SO2 content in litchi fruit wine were investigated in this paper and the addition of N source nutritions to increase free SO2 content was also studied. 本文探讨了荔枝酒中游离SO2偏低的原因,并研究了通过添加N源营养素来增加游离SO2的含量。
- In comparison with ammonium as sole N source, the ammonium nitrate nutrition increased root length, root surface area, root density, and total P uptake. 与单一的铵营养相比，铵硝混合营养增加了根长和根系的表面积、根系的密度以及磷的总吸收量;
- The results showed that nitrate concentration of false pakchoi was significantly reduced when NO3--N source in nutrition solution was replaced by other nitrogen source. 结果表明 ,营养液中的硝态氮源被其他形态氮源替代后能明显降低菜心的硝态氮含量 ;
- Under the low pH condition with NH~+_4N as the sole N source, aerenchyma could be formed much easier in the root cortex of rice. This might be an adaptable mechanism of plant to decrease toxicity of ammonium accumulation under low pH condition. 低pH条件下且以NH4+-N为单一N源时,稻根皮层处更易形成通气组织,可能是植物为了减轻低pH条件下铵毒害而产生的一种适应性机制。
- The best initial pH value of growth medium for xylanase production was at pH6.0. Corn cob xylan (water insoluble) and Tryptone were the best C and N sources, respectively. 经摇瓶实验，卷须链霉菌最佳的发酵产酶条件为：最适初始pH6.;0，玉米芯水不溶木聚糖为碳源，胰蛋白胨为氮源，添加0
- In a common medium with suitable C, N sources, Streptomyces qianfoensis sp. nov. SIIA 9818 was cultured for 7 days, harvested cultural broth with 50% mycelial mass. 千佛链霉菌新种 SIIA9818(Streptomycesqianf oensis sp nov SIIA9818)在含合适碳氮源的培养基内 ,经发酵获约 50%25菌丝量的培养液。
- The news comes from a reliable source. 这消息来自可靠的来源。
- The nutrient solution culture experiment was conducted to study effects of Se on seedling growth and N,P,Ca content in Italian ryegrass,and seedling growth effects of Se,Si and Se and Si mixed application under N sources (NH4NO3,CO(NH2)2,NaNO3,NH4Cl). 通过yoshida溶液培养多花黑麦草幼苗;研究了Se对幼苗生长和N、P、Ca元素含量以及不同氮源(NH4NO3、CO(NH2)2、NaNO3、NH4Cl)下Se(0.;1mg/L)、Si(SiO240mg/L)、Se与Si共施对幼苗生长的影响。
- GongZ Y, Yu S F, Qu L.Study on the needs of C sources and N sources for mycelial of Pleurotusferulae lenzi[J].J. of Agric.Univ.of Shandong (Natural Sci.Ed. ), 2002, 33(4): 418- 421. [4]宫志远;于淑芳;曲玲.;阿魏侧耳菌丝生长对碳氮营养需求的研究[J]
- Pleurotus tuber Regium were cultured with wheat bran, cattle dung, ammonium sulphate and urea as N sources, and its sclerotium yield and total content of amino acids were determined. 摘要运用灰色系统理论，探讨了不同氮源对虎奶菇菌核产量及其各类氨基酸总量的影响，并进行灰色关联的综合评判。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础，根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处？
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
