查询词典 liquid nitrogen

It's equipped with asphalt overflow pipe, anti-liquid overflow breather valve, anti-aging overhead nitrogen charging valve, temperature inductor, thermometer, volumeter and fast discharge valve and coupling used to output asphalt.

配备沥青溢流管、防冒液呼吸阀、防老化顶置充氮阀、温度感应器、、温度计、容量计和输出沥青的快速卸料阀及接耦。

Methods The genomic DNA from Ephedra glauca was randomly transferred in Saccharomyces cerevisiae and Hansenula anomala,respectively by nitrogen ion bombardment.The recombined yeasts were screened and the content of ephedrine in ecto-and endo-recombined yeasts was determined by the methods of bromothymol blue indicator selection,slant cultivation,liquid culture,copper chromic salt qualitative test,and RP-HPLC determination.

方法通过N 注入介导蓝麻黄基因组DNA分别在酿酒酵母Saccharomyces cerevisiae和异常汉逊酵母Hansenula anomala中随机转化，转化后的酵母菌经BTB指示性辅助筛选、斜面传代和液体培养后，用铜铬盐定性检识和RP-HPLC方法，检测重组酵母菌胞外和胞内麻黄碱的量。

Selecting the optimum carbon sources, nitrogen sources and inorganic salt to get the optimum liquid medium recipe by the orthogonal test in three factors and four levers; Isolated toad gastrocnemius stimulated by pulse electricity was regarded as fatigue model and Clitocybe maxima mycelia was compared with Ringer solution to see what influence they had on muscle contract ability.

采用深层培养方法，筛选出较优的碳源、氮源、无机盐，设计三因素四水平的正交试验，筛选大杯伞的最适培养基；采用脉冲式电流直接刺激蟾蜍离体腓肠肌作为疲劳模型，观察大杯伞菌丝体和任氏液对蟾蜍腓肠肌收缩能力的影响。

Therefore can pass to use the cupric sulfate sulfuric acid potassium for the catalyst take sulfuric acid as to carry the body to digest it, make the amino acids chelate match the conversion for dissolve sex easily of ammonium sulfate and white vitriol, then absorb a fixed amount to try the kind to join 40% sodium hydroside combine under the steam heat function make ammonia the spirit swims to leave out, through cool off to respond the born boric acid with boric acid, be got the total nitrogen content by the standard aqua titration of hydrochloric acid immediately after;But the white vitriol can immediately join the hydrochloric acid hydroxylate , fluoride to turn the in order to cover up, carry on the titration but get the content of its zinc with the EDTA mark liquid..

因此可以通过用硫酸铜硫酸钾为催化剂以硫酸为载体将其消化，使氨基酸螯合锌转化为易溶性的硫酸铵和硫酸锌，然后吸取一定量的试样加入40 %的氢氧化钠并在水蒸气高温作用下使氨气游离出来，经冷却与硼酸反应生成硼酸铵，接着由盐酸标准溶液滴定得到总氮含量；而硫酸锌即可加入盐酸羟铵、氟化氢铵为掩蔽剂，用EDTA标液进行滴定而得到其锌的含量。

In this paper, the influence of liquid loadage, rotating speed, xylose concentration and organic nitrogen source on xylose fermentation by Candida shehatae CICC 1766 to produce ethanol were investigated. Besides, ethanol tolerance of Candida shehatae CICC 1766 was studied.

研究了装液量、转速、木糖浓度、有机氮源等条件对休哈塔假丝酵母CICC 1766发酵木糖生产乙醇的影响，探讨休哈塔假丝酵母的乙醇耐受能力。

aim: to establish a new reversed phase high performance liquid chromatography method for assay 4 kinds of non protein nitrogen markers of human diabetic nephro pathy, creatine, creatinine, urea and uric acid in dn patients urines.

目的：建立糖尿病患者尿液中与肾病相关的非蛋白氮代谢产物(肌酸、肌酐、尿素和尿酸)的反相高效液相色谱分离分析方法。

The effect of carbon sources, nitrogen sources and different concentration of inorganic salt on the production of exopolysaccharide of Pholiota adiposa was studied in this paper by liquid culturing and orthogonal test.

采用液体培养和正交试验方法研究了不同碳、氮源及不同无机盐浓度对黄伞产生胞外多糖的影响。

Air underbalance drilling, is the drilling technique which could used gases, typically compressed air, natural gas, nitrogen and diesel tail gas as a circulation liquid.

气体欠平衡钻井，可以采用空气、天然气、氮气、柴油机尾气作为循环介质，其循环系统的压力分布、钻井机械的选择、控制井斜与传统钻井方式相比有着很大的区别。

The effects of the ratio of carbon source,nitrogen source and concentration of ethanol in the medium on the productivity of polysaccharide-peptide by Coriolus versicolor were studied during the shaking flask liquid fermentation.

通过液体发酵的摇瓶实验，考察碳源、氮源、碳氮比和乙醇浓度对云芝糖肽的产率影响，确定葡萄糖和玉米淀粉为适宜碳源，蛋白胨和黄豆饼粉为适宜氮源，合适的碳氮比为20∶1，适宜的乙醇体积分数为1.5%。

Now oxygen does not boil away from liquid air so easily as nitrogen. By careful arrangement

现在氧气那么容易地不从液态空气煮沸作为氮气。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新