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The mobile phase was a mixture of acetonitrile 0.378 mol/L acetum (30∶70) and in a flow rate of 0.8 mL/min; The detective wavelength was 321 nm; Column temperature was room temperature and the injection quantity was 10 μ L.

色谱柱 Lichrospher C 18 (4.6 mm ×250 mm，5 μm)，C 18 保护柱；流动相：乙腈 0.378 mol/L冰醋酸水溶液(30∶70)；检测波长321 nm；流速0.8 mL/min；柱温：室温；进样量10 μL。

Pitch circle diameter: d = mz = 3X12 = 36 Tooth crown heights: ha = m (f0 + x)= 3X (l +0.5)= 4.5 Tooth High: hf = m (f0 + cx)= 3X (l +0.25-0.5)= 2.25 Tooth full height: h = ha + hf = 4.5 +2.25 = 6.75 Addendum circle Chemical pumps diameter: Da = d +2 ha = 36 +2 X4.5 = 45 Fixed string tooth thickness: Sxn = m (π/ 2 * cos2a + xsin2a)= 3X (1.387 +0.6428 X0.5)= 5.125 Fixed string of high gear tooth thickness measurement: hxn = m (π/ 8 * sin2a + xsin2a)= 3X (0.7476X0.117X0.5)= 2.42 Modulus coefficient x0.5 m3 O20 ° pressure angle tooth thickness Sxn5.12 fixed string Addendum Coefficient string f1 fixed gear tooth thickness measurement most high hxn2.42 Teeth z12 2, shaft wear and tear maintenance: Axis gear pump wear is mainly because with the support roller shaft at both ends between the friction and wear, so that smaller shaft diameter.

分度圆直径：d=mz=3X12=36 齿顶高：ha=m（f0+x）=3X（l+0.5）=4.5 齿根高：hf=m（f0+c-x）=3X（l+0.25-0.5）=2.25 齿全高：h=ha+hf=4.5+2.25=6.75 齿顶圆直径：Da=d+2ha=36+2X4.5=45 固定弦齿厚：Sxn=m（π/2*cos2a+xsin2a）=3X（1.387+0.6428X0.5）=5.125 固定弦齿厚测量用齿高：hxn=m（π/8*sin2a+xsin2a）=3X（0.7476X0.117X0.5）=2.42 模数m3变位系数x0.5 齿形角o20°固定弦齿厚Sxn5.12 齿顶高系数f1固定弦齿厚测最齿高hxn2.42 齿数z12 2、轴的磨损维修：齿轮泵中轴的磨损主要是因为轴两端与支撑滚针间的摩擦磨损，使轴径变小。

Their detection limits of adenine (S/N=3) of 2.0×10(^-7)mol/L and 1.7×10(^-7)mol/L, respectively.

腺嘌呤和鸟嘌呤的检测限分别为2.0×10(^-7)mol/L和1.7×10(^-7)mol/L。

In a summary,in this study,the entire provirus genomes of EIAV L and DLA-EIAVprovirus were cloned and sequenced.Speculation about the function and structure of EIAVgenome was drawn upon the comparison of EIAV L,DA-EIAV,DLA-EIAV and other alienEIAV strains.

总之，本研究首次获得了我国DLA-EIAV和L株前病毒全基因克隆，确定了DLA-EIAV和L株前病毒基因组核苷酸全序列，并对EIAV L株、DA-EIAV、DLA-EIAV及国外相关的EIAV毒株进行了比较分析。

The improved method selects the absorbing wavelength of 618 nm and the reaction time of 40 min, uses the NH4Cl-NH3 buffer solution (pH=8.0) and BTB alcohol solution (0.4 g/L) respectively of 5 ml and 1.5 ml in the 50 ml volumetric flask, and can test the concentration of imidazolinyl-quaternary-ammonium-salts in range of 0 mg/L to 80 mg/L.

利用改进的显色反应法检测时，吸收波长选择618 nm，显色时间40 min， 5 ml容量瓶中NH4Cl-NH：缓冲液(pH=8.0)和BTB乙醇溶液(0.4 g/L)的添加量分别为 5 ml、15 ml，适用检测的咪唑啉季铵盐浓度为0~80 mg/L。

By orthogonal experiment and diversity analysis, 1.0g/L zinc powder and 20g/L sodium glutamate added to conversion-solu...

通过正交实验和方差分析，确定在转化液中添加1.0g/L锌粉和20g/L谷氨酸钠作为效应物，L-苯丙氨酸积累浓度提高55%，该两种效应物对PAL的稳定性增加显著。

Starting from intermediates of L-ribose, we synthesized a series of L-ribosides and their derivatives with the bases of pyrimidines and purines.

同时，我们从合成L—核糖的中间体出发合成了一系列碱基为嘧啶类和嘌呤类的L—核苷及L—核苷衍生物。

In third part, I discussed R0 algebra in two different aspect:(1) Defined Boole element in R0 algebra. Gave the properties of Boole element and distributive rules of Boole element about finite R0 algebra. Study the filter and the stone filter of L are filters of M.

元的分布规律：研究了民代数M的滤子和民代数M作为有界分配格（记这个有界分配格为L（MO 的滤子之间的关系，得出结论：L的极小素滤子以及 L的 Stone滤子都是 M的滤子，但 L的滤子一般不必是M的滤子。

I know Li Mi ng has a l ot on the bal l . But I ' m not sure i f he l i kes to work here.

很能干 to have a l ot on the bal l 我知道李明很能干，但我怀疑他是否真的愿意到我们这儿来工作。

The content of major nutrient elements such as TN is 0.5455-0.7618 mg/L, which was lower than TN of main lakes in Heilongjiang Province, TP (0.4315-0.4950 mg/L) is normal.

水中COD含量为8.56~11.36mg/L；主要营养元素总氮为0.5455~0.7618mg/L，总磷为0.4315~0.4950mg/L，属于中富－富营养型湖泊。

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。