查询词典 nitrogen-free

Corbicula fluminea however affected the exchange of nutrient nitrogen across the sediment-water interface by the physiologic mechanism such as the excretion. Crabs such as Ilyoplax deschampsin changed the physical structure of the tidal flat sediments by the strong bioturbation, and increased the content of dissolved oxygen in the sediment by enhancing the touched area of sediment and air.

谭氏泥蟹主要通过生物扰动，增加沉积物-水-气三相界面之间的接触面积，促进沉积物界面附近营养盐物质交换过程；而软体动物河蚬则主要通过生理活动，影响潮滩沉积物中氮营养盐的界面扩散过程。

The results show that the best carbon source and nitrogen source are corn flour and NH4Cl respectively.

结果表明：杏鲍菇菌丝生长的最佳碳源为玉米粉，最佳氮源为NH4Cl，最适无机盐为KH2PO4和MgSO47H2O。

Catalytic co-pyrolysis of corncob/LDPE mixture was performed in nitrogen and hydrogen atmospheres

低密度聚乙烯与玉米芯混合物在氮气氛围中共同热解时，在2：8的混合

The results of preliminary experiments showed that culture medium containing apple pomace and cottonseed meal (1︰1) as carbon and nitrogen sources supported xylanase production with maximal enzyme activity.

初步试验结果表明：以棉粕和苹果渣（1︰1）作为基础氮源和碳源得到的发酵曲的酶活值最高。

By collecting ,testing, comparing, and analyzing the soil samples, soil recovery under the various recovery conditions along Mian CountyNingqiang highway was studied. The results were as follows herbaceous recovery to the soil fertility recovery in the prior was greater than the combination of grass and irrigation or than the pure bushes recovery. In each of them, the content of organic matter were 13.84, 7.50, 6.00 g·kg-1; In the recovery of herbaceous ecology, to grow leguminous plant and granminaceous plant together was better than pure graninaceous plant or pure leguminous plant. In each of them, the content of organic matter was 29.67, 17.51, 9.37 g·kg-1; to sow ryegrass and alfalfa together with some local grass seeds or to grow coxcomb, alfalfa and local couch grass together could bring better effects than to plant the alfalfa only. In each of them the increased organic matter contents were 4.93,17.51 and 9.37 g·kg-1;the quotas of the organic matter and alkaline hydrolysis nitrogen in soil fetility factor were closely connected, mainly because of the difference between the generation quantity and resolution quantity of the organic matter in the soil surface.

采集土壤样品，经室内分析化验，用对比分析的方法对勉县至宁强高速公路生态恢复中不同恢复类型条件下的土壤恢复进行了研究，结果表明草本恢复类型对前期土壤肥力的恢复作用大于草灌结合，并大于单纯灌木恢复类型，其中有机质含量分别为13.84、7.50和6.00 g·kg-1；在草本生态恢复类型中，豆科植物与禾本科植物混播恢复类型大于禾本科植物恢复类型的作用，并大于单纯豆科植物恢复类型的作用，其中有机质含量分别为29.67、17.51和9.37 g·kg-1；黑麦草与苜蓿混播并有当地草种入侵以及小冠花与苜蓿混播并播入当地草种羊茅，明显优于纯苜蓿单播，其中有机质含量分别增加了4.93和3.32 g·kg-1；土壤肥力因子中有机质与碱解氮两个指标有较好的相关性，主要与土壤表层有机质的生成量和分解量之差有关。

Therefore, we studied two levels of biochemistry processing water leakage again in turn after the ozone tower, the ceramic filter the tower and the activated charcoal tower union depth processing craft again, this place principle craft its COD remove rate was 72.8%, anionic surfactant medicinal preparation remove rate was 90.9%, petroleum class remove rate was 78.8%, the total phosphorus and total nitrogen remove rate separately was 73.8% and 82.7%, the final water leakage might directly use in the city afforests, flushes the restroom, eliminates and washes the vehicle and so on, had the good environment, the society and the economic efficiency.

为此，我们又研究了二级生化处理出水再依次经过臭氧塔、陶滤塔与活性炭塔的联合深度处理工艺，该处理工艺其COD去除率为72.8%，阴离子表面活性剂去除率为90.9%，石油类的去除率为78.8%，总磷和总氮的去除率分别为73.8%和82.7%，最后出水可直接用于城市绿化、冲厕、扫除及洗车等，具有良好的环境、社会和经济效益。

Blood urea nitrogen and creatinine were determined on 1,3,5 days after CDDP treatment.

CDDP处理后，分别在第1、3和5天采血，测定血清尿素氮和肌酐。

Crepitus is different from the loud snap you hear when you crack a knuckle: That's caused by nitrogen bubbles inside the joints popping under pressure, says Raymond Rocco Monto, M.D., an orthopedic surgeon and spokesman for the American Academy of Orthopaedic Surgeons.

矫形外科医生，同时也是美国骨科医学院的发言人，雷蒙德·洛克·蒙托医学博士指出，捻发音和你猛按指关节时发出的脆响有所不同：后者是由关节中的氮气泡在压力下破裂造成的。

The effect of dissolved oxygen, temperature and concentration of nitrogen and phosphorus on the germination of turion of Patamogeton crispus L.

通过正交实验测试了水体溶氧、温度、氮和磷水平对菹草冬芽萌发的影响。

The result show in transplanted vessel EF-1 and PCNA are mainly expressed in smooth muscle cells and Clemons rate proliferation of SMC is the core of endothelium proliferation.In the third part of our experiment we use fluid nitrogen to fire transplanted rein, crofter tissue homogeneous to test the expression of CE and EF-1 gene we use RT-Craned immunohistologiccal method to test mKNA and protein level respectively and analyze the expression of these tm genes in transplanted vein.

本实验的第二部分，我们将术后大鼠分为10组，每组8只，分别于术后6hours、24hours、72hours、1W、10days、2W、3W、4W、6W、8W切取移植静脉，将切取的不同时期的移植静脉分别置于10％中性福尔马林溶液中固定和液氮冷冻固定，将福尔马林溶液固定的标本制成4μm厚石腊切片，，常规进行病理观察大体改变，静脉标本HE染色后于光镜下观内膜增殖情况，并应用PCNA单克隆抗体，观察SMC增殖情况。

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。