查询词典 N.C.

The effects of carbon source and C/N ratio on denitrification of aerobic denitrifier were investigated in the batch culture under aerobic environment.

利用间歇培养装置研究了好氧条件下丁二酸盐、乙酸盐和苹果酸盐3种不同碳源对好氧反硝化细菌X31脱氮性能的影响，并就不同碳氮比条件下菌株X31的反硝化能力展开了研究。

Soil microbial biomass and activities of invertase and urease all tended to decrease after pot-culture experiment, while the correlations between these biochemical properties and field ages were similar to those before this experiment, suggesting that rice cultivation without fertilization consumed part of soil microbial biomass, decreased soil enzyme activities correlated with C and N transformation, and affected soil nutrients status disadvantageously.

温室盆栽试验之后，水稻土的微生物生物量及酶活性与利用年限之间的关系规律和种植水稻之前基本一致，且整体上又趋于下降，即无施肥条件下种植水稻转化利用了土壤部分微生物生物量，并减弱了与碳氮转化相关酶的活性，对保持水稻土的营养水平造成不利影响。

Most of optic a l systems consist of a number of singlet a nd doublets, of which the singlet c a n be considered a s a speci a l doublet.

摘要大多数光学系统都是由若干单透镜和双胶合透镜组成的，单透镜可以看成是双胶合透镜的特殊情况。

Furthermore, the deduced amino acid sequences of PL1 and PL2 in common wheat were compared with the sequences of LMW-1(GenBank number Y18159)and LMW-2(GenBank number AJ007746)in durum wheat .

PL1与PL2的氨基酸序列比较显示，在N-末端和重复区域同源性很高；两者的主要差别在于：C-末端PL1编码的氨基酸序列有一段富含Q、P的16个氨基酸残基的缺失。

We applied the method based on certain energy estimates to prove the convergence and stability of the scheme in energy norm and maximum norm.

我们利用能量分析法证明了C-N格式在能量模和最大模意义下的收敛性和稳定性；通过矩阵分析和对广义特征值的估计得到离散L_2模意义下的收敛性和稳定性。

The change of fibers and hydroxy rubber in surface is determined by ESCA and SEM.

用电子能谱仪和扫描电镜对改性后的纤维和丁羟橡胶表面进行了测试，结果表明：C元素的含量明显下降，N和O元素的含量提高，纤维表面活性提高。

On the N.B.C. network, it is forbidden to call any character a nut

如此看来，screwball虽然和nut同样都是俚语，但比较高级一点。

Formate species were reactive towards nitrates to yield formyl nitro compound,an intermediate critical for the formation of cyanide and isocyanate species by further reacting with nitrates.

在NO+O_2+C_2H_4条件下，催化剂表面除了生成硝酸盐和甲酸盐物种之外，还有-C N，-NCO和HCONO_2物种的生成。

The I-V characteristics of the diodes with 100μm diameter indicated that as the densities of V-defects on GaN films increased from 4.1×105cm-2 to 1.03×107cm-2, the Schottky barrier height decreased from 1.44eV to 1.19eV and the reverse bias leakage current at -1V is increased sharply from 10-10A to 10-7A . Further studies on a single V-defect using conductive atomic force microscope demonstrated that the value of forward current biased at 8V at V-defect side-walls appears to be one order higher than that of plain region, indicating that the conductivity mainly occurred at the side-walls of V-defect.

实验结果发现，随著V型缺陷密度由4.1×105cm-2增加至1.03×107cm-2，在氮化镓表面蒸镀镍金属所制成直径为100μm的萧基元件之所属能障从1.44eV下降至1.19eV，而且在-1V的操作下反向偏压漏电流从10-10A急遽的攀升至10-7A；为了了解V型缺陷对厘米尺寸n-GaN萧基元件电流传导机制之影响，我们进一步的利用导电原子力显微镜(Conductive Atomic Force Microscopy， C-AFM)，特别针对单一个V型缺陷进行微观电性之量测。

C' v7 Z free-lancer n.

自由撰稿人

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。