查询词典 l

When the concentration of quaternary ammonium salt was less than 120mg/L, or that of hydroxy ethyl cellulose was less than 220mg/L, both of them could be used as nutriment to be degraded by aerobe.

当水样中季铵盐浓度小于120mg/L，羟乙基纤维素浓度小于220mg／L时，它们不具生物毒性，可作为营养物质被微生物利用。

Experiment results as follows: the COD consistency of second retting water was 6000 to 7100mg/L, but the COD consistency could reach 1779.50—2198.3 mg/L after consumption by anaerobic microbe in UASB. The remove rate of COD can achieve 66% or more, and water affluently was stable.

研究表明：沤麻"二遍水"COD在6000～7100mg／L之间，经过UASB反应器中厌氧微生物的降解，出水COD在1779.50--2198.3mg／Lmg／L之间，去除率保持在66％以上，而且出水水质比较稳定。

50Mmol/L NaCl stress had no influence on level of ATP in root of Ginkgo andAilanthus.Level of ATP in roots of Ginkgo,Ailanthus and Robinia decreased greatly under200mmol/L NaCl stress.The extent of decrease of ATP level accord to plant salt tolerance:Ginkgo is more salt tolerance,and ATP decreases more slowly than that of Ailanthus andRobinia.

11.50mmol/L的NaCl胁迫没有引起银杏和臭椿根尖ATP水平的明显改变；200mmol/L的NaCl胁迫引起银杏、刺槐和臭椿ATP水平指数性的衰减，ATP的下降幅度的变化与植物耐盐性一致：耐盐性强的银杏，ATP的下降幅度明显比刺槐和臭椿小。

Results: aminopyrine in 20 ~ 200mg · L-1 concentration range of linear relationship, r = 0.9998, average recovery was 100.4%,Diantipyryl in 10 ~ 60mg · L-1 .the concentration range of linear relationship, r = 0.9997, the average recovery was 100.2%.

结果：氨基比林在20～200mg·L-1的浓度范围内呈线性关系，r=0.9998，平均回收率为100.4%；安替比林在10～60mg·L-1的浓度范围内呈线性关系，r=0.9997，平均回收率为100.2%。

The simulative results show that the leachates COD of semi-aerobic landfills decrease to National Discharge Standard Class I (100mg/L) in 2-3 years, and ammoniac nitrogen reduce to the standard (15 mg/L) in one year or so.

在室内模拟的条件下显示，准好氧填埋场垃圾渗滤液的COD自然衰减至国家一级排放标准(100mg／L)仅需2～3年，而氨氮只需1年左右即可达到相应的国家一级排放标准(15 mg／L)。

NO3-N is the most popular and safest nitrogen source to Spirulina, the suitable concentration is about 11mmol/L, which can speed the growth rate and reduce the cost of cultivation as well. NH4-N of the suitable concentration can enhance the growth of Spirulina,but overhigh concentration will cause the ammoniac toxicosis, the suitable concentration of NH4-N is about 1.27～2.57mmol/L.

NO3-N对螺旋藻是最为通用和安全的氮源，但添加浓度以11mmol/L左右最为适宜，既可满足藻体的最佳生长需求又可降低养殖成本；适宜浓度的NH4-N可促进螺旋藻的生长，浓度过高则会造成NH3中毒，NH4-N的添加量以1.27～2.57mmol/L范围最为适宜。

Adjusting pH to 12, air-liquid ratio to the range of 3 000～4 000 and temperature to the range of 35～45℃, after the washing wastewater from deposited ammonium carbonate that the initial concentration of ammonia nitrogen was 1 570 mg/L was treated by ammonia stripping, the residual concentration of ammonia nitrogen was controlled to below 100 mg/L and removal efficiency reached to over 94%.

发现pH、温度和气液比是氨氮去除效率高低的关键因素，废水初始浓度对去除率无影响。调节废水pH=12，气液比在3 000~4 000，温度在35~45℃范围，浓度为1 570 mg/L的碳铵沉淀洗涤废水经氨吹脱处理可使出水残余氨氮浓度控制在100 mg/L以下，去除率达94%以上。

XRD revealed that diffraction angle of 002 peak did not change obviously, while by contrast, L a and L c decreased by loading with Fe2O3, indicating decreasing degree of graphitization for microcrystalline structure of char.

由XRD可知，Fe2O3没有使得煤样半焦的002峰衍射角发生明显变化，但使 L a和 L c参数明显降低，说明半焦的微晶结构石墨化程度降低。

The description methods of natural scenery was studied based on fractal, that is, recursive method, L-system method, IFS and IFS description method was put forward based on sine or cosine. This method overcomes angularity and consistency of recursive method, L-system method and IFS, and the variety of fractal sculpting consequence can be added and the basis for the later research and the application was provided.

对基于分形的描述自然景物方法，即递归洪、L-系统法、IFS法进行了分析研究，在此基础上，提出基于正余弦的IFS描述法，该方法克服了递归法、L-系统法、IFS法等描述方法的生硬性和一律性，增加了分形造型结果的多样性，为以后的深入研究和应用提供了依据。

Organization: Institute of Chemical Engineering and Environment, Qingdao UniversityAbstract: A new Schiff base and its cupric complex of L-lysine and anisaldehyde were synthesized by stepwise synthesis method in anhydrous system, with basic essential amino acid L-lysine and natural product anisaldehyde as precursor.

摘 要：以碱性必需氨基酸L-赖氨酸和天然产物茴香醛为前体物，采用分步合成法在无水体系中制备了L-赖氨酸缩茴香醛单席夫碱及其铜配合物。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。