查询词典 nitrogen-free

The results indicated that 28 of 407 genes had an altered pattern of expression 24 hours after nitrogen deprivation.

结果显示，在缺氮培养24小时的条件下，28个基因的表达发生变化。

The research in adsorption and desorption of nitrogen and phosphate is crucial to application of fertilization and environmental pollution prevention.

研究土壤对氮、磷的吸附/解吸附特性对合理施肥、防止环境污染等有重要的作用。

RESULTS: After ischemia-reperfusion injury, the rats had hydrouria, urine osmotic pressure depress, symptoms of carnine and urea nitrogen increasing. HE staining demonstrated that renal tubular epithelial cells were swelling, necrosis, and desquamate. Aquaporin-1 expression and its mRNA level was decreased; in particular, the expression and level were the lowest at day 1 after ischemia-reperfusion injury and recovered to normal value at day 5 after ischemia-reperfusion injury.

结果：大鼠肾脏缺血再灌注损伤后出现尿量增多、尿渗透压降低，血肌苷、尿素氮升高症状；苏木精-伊红染色示肾小管上皮细胞肿胀、坏死、脱落；水通道蛋白表达量及其mRNA含量均较对照组减少，这些变化于缺血再灌注损伤 1 d时最低，至缺血再灌注损伤 5 d时恢复正常。

E The results of LECO TC-436 Oxygen/Nitrogen Determinator show that there is a little oxygen in the nitrided samples.

D试样的粒度较大和高温加热时间比较短的情况下，渗氮试样中均有未发生氮化的金属锰残余。

Based on this, a liquid nitrogen cooled screen device is developed to control the radiation degradation of deuterium lamp.

建立了氘灯真空辐射特性测试系统，利用该系统对液氮制冷屏装置的有效性进行了考察。

The carbon and nitrogen sources could satisfy the basic growth requirement of Geotrichum candidum link However, since its ability of utilizing starch and dextrin is not strong, the best pre-treatment of the waste water is sacchrification.

小麦淀粉废水的碳氮源能够满足白地霉生长的基本要求。但白地霉利用淀粉和糊精的能力并不强，因而最适的废水预处理方法是经过糖化。

The grain size of sediments has an important role in the early diagenesis of nitrogen.

在氮的早期成岩过程中，粒度也起着非常重要的作用，沉积物的粒度越细，沉积物中有机氮的分解速率越小，即细粒度沉积物中有机氮的分解矿化速率最小，易于富集有机氮。

The adsorption of urea nitrogen onto dialdehyde cellulose under catalysis of immobilized urease in gelatin was studied in batch system.

研究了在固定化脲酶催化作用下双醛纤维素对尿素氮的吸附平衡和动力学。

The machine applies Faraday magnetic conductivity principle for the first time, utilizes the difference between oxygen of air andnitrogen, paramagnetism of oxygen and diamagnetism of nitrogen principles and adopted high-performance rare-earth permanent-magnet material, which creates 18 proprietary technologies that take polyoxier and helimagnetizer as core.

该机首次应用法拉弟导磁性原理，利用空气中氧、氮磁性之差，即氧的顺磁性和氮的抗磁性原理。采用高性能稀土永磁材料，创造了以"聚氧器"和"螺旋磁化器"为核心的16项专有技术。聚氧器利用氧的顺磁性，采用高梯度强磁场富聚空气中的氧，同时设有与离心叶轮同步高速旋转的双向扫射磁场，对富聚的氧予以充分的激活。

Better diaphaneity and DO, lower velocity of flow, with abundant aquatic biology were also found to be propitious to form complex biofilm, and to the enrichment of phosphorus and nitrogen in the biofilm.

较高的水体透明度、溶解氧水平，较低的水体流速，以及丰富的水生生物的存在有利于形成结构较复杂的生物膜，利于天然水体中生物膜对水体中氮磷的富集。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。