物质

In microgametogenesis, callose deposits in tapetal cells and begins to accumulate around microspore nucleus at the early microspore stage, callose deposition around microspore nucleus continues through uninucleate microspere stage.

小孢子早期，绒毡层细胞中积累胼胝质类物质，小孢子核周围也开始沉积胼胝质，逐渐形成完整胼胝质壁；小胞子晚期，绒毡层细胞开始解体，药室内壁细胞开始加厚，其加厚的物质为胼胝质类物质。

311 Is the first of a three-term laboratory subject sequence for chemistry majors. Experimental work emphasizes development of fundamental laboratory skills and techniques: volumetric and colorimetric analysis; nuclear magnetic resonance; preparation, purification, and characterization of chemical substances; and data analysis.

5.311课程是主修化学的学生们三个学期的实验课程中的第一门，也是基础的一门，实验室里的工作十分强调基础实验技能与技术的培养：容积计量分析与色度分析；核磁共振；物质制备；物质提纯；物质的化学性质；数据分析。

The results show that the sample is well dispersed particles with high purity and an average size of about 1 μm. Favorable substances of Ca2 and Sn appear during the cycling of zinc electrode containing CaSn6, Ca2 has continues to react with ZnO to produce calcium zincate, which can highly reduce the dissolvability of anode active materials and greatly improve the cycling performance of zinc electrode. The simulated Ni/Zn battery using CaSn6 and ZnO as the active material of zinc electrode has a high discharge plateau and an excellent cycling ability, and it can retain about 72.6% of initial discharge capacity after 50 charge-discharge cycles.

研究结果表明：通过共沉淀方法合成的CaSn6粒度分布均匀，平均粒径在1 μm左右，并且具有较高的纯度；添加CaSn6的锌负极在循环过程中游离出了Ca2和金属锡等有益物质，并进一步与ZnO反应生成锌酸钙，降低了锌负极活性物质在电解液中的溶解性，从而显著提高了锌电极的循环性能；以CaSn6与ZnO的混合物为负极活性物质的模拟锌镍电池具有较高的放电平台和优良的循环性能，经过50次循环后，电池放电容量保持为起始容量的72.6%。

Little is known about the mechanism of translocation of macromolecules into lens epithelium and fiber cells. The study was to observe whether the rupture of zonule affected translocation of macromolecules into the lens and to determine the role of zonule in transferring these macromolecules.

大分子物质晶状体内转运的机制目前还不十分清楚，本研究的目的是观察悬韧带离断对大分子物质晶状体内转运的影响，以探讨悬韧带在大分子物质转运中的作用；3。

Theoptimal conditions were as follows: amidulin 1.25%,CaCO_3 0.05%, yeast0.6%,NaC1 0.7%,KH2PO4 0.3%. The stability of antagonistic substance produced by Q6 was studied. Theactivity of the inhibitive substance was influenced when time and temperaturewaxing. In 100℃for 30 minutes,the inhibitive zone diminished distinctly, but thesubstance still had inhibitive effect on the pathgen. In pH 3.0～above 9.5 forovernight or treated by Proteinase K, the inhibitive zone is not changed.

对其拮抗物质进行了温度、酸碱度和酶三个方面的稳定性试验，当温度达到55℃以上时，随着温度和时间的变大，抑菌圈逐渐变小，但直到100℃，30min时，对病原菌的生长仍有抑制作用；pH3.0～9.5以上静置过夜后，拮抗物质对病原指示菌产生的抑菌圈几乎没有发生变化；经过蛋白酶K处理后，拮抗物质对病原指示菌产生的抑菌圈不变。

Through researching the mechanism of biological nitrification and denitrification and actual project application of the technology and related literature materials, the obtained results are as follows:(1) Anoxybiosis is effective to the removal of COD; after the anoxic process, BOD/COD of the outflow increases, it shows that the degradation ability of wastewater is improved; anoxybiosis is insensitive when shock loading of inflow wastewater varies greatly;(2) It is demonstrated by the operation of inoculation and cultivating that biofilm takes two weeks to succeed in cultivating on packings and the removal ratios of NH3-N and COD get 50% and 70% respectively, when gas-water ratio is 6:1, HRT is 7.3 hour, water temperature is above 15°C;(3) It is demonstrated that gas-water ratio, hydraulic loading, HRT, temperature, pH etc are important factors which influence the removal effect of pollutants, when the gas-water ratio is 6:1, hydraulic loading is about 0.38kgNH3-N/m~3.d, water temperature ranges from 15°C to 27°C, pH ranges from 7.5 to 8.0, the BIOFOR removal effect of pollutants is the best;(4) The operation indicated that, this technology has strong ability of nitrification and denitrification; it has extremely vital significance for reducing the water body eutrophication;(5) It is confirmed the feasibility and the usability of preanoxic-BIOFOR process to treat L-lactic acid production wastewater. The experiment indicated that the treatment effect of this technology is very good and also shows that the technology has many advantages, such as small volume, high treatment efficiency, good effluent quality and strong endurance to load variation, this technology is a new and economical wastewater treatment process.

通过对生物脱氮机理的研究和该组合技术的实际工程应用，并结合有关文献资料，取得如下结论：(1)预缺氧池对L-乳酸生产废水中的COD去除具有一定的效果；废水中难降解的高分子物质经过缺氧工段分解为易于氧化降解的物质，浮状有机物在水解菌的作用下，将不溶性有机物水解为溶解性物质；预缺氧池具有较强的抗冲击负荷能力；(2)BIOFOR接种挂膜过程表明：HRT为7.3h、气水比为6：1、水温保持在15℃以上，经过半个月生物膜即以形成，NH_3-N和COD的去除率分别达到50％和70％左右；(3)研究表明：气水比、水力负荷、HRT、温度、pH等是影响污染物去除效率的重要因素，在气水比为6：1，NH_3-N容积负荷为0.38kgNH_3-N／m~3·d，温度在15℃-27℃，pH在7.5-8.0之间的条件下，BIOFOR对污染物的去除效率达到最佳；(4)运行表明，该组合技术具有较强的脱氮能力，对于减少水体富营养化具有十分重要的意义；(5)经过半年多实际工程的现场调试与运行，验证了利用预缺氧—BIOFOR组合工艺处理L—乳酸生产废水的可行性和实用性，得出该组合技术具有占地面积小，处理效果好，运行费用省，耐冲击负荷能力强等优点，是一项新型、经济的污水处理技术。

Aura: is the bioplasmic energy around an object and life form. It contains divine atom, proton, electron, neutron, light, atom, proton, electron, neutron, anti-proton, photon, anti-electron, antineutron, and also anti-energy and antimatter field.

它含有神性的光，原子，质子，电子，中子原子，电子，中子，原子质子，反-质子，光子，正电子，反中性子，同样也有反-能量和反物质粒子在光环里存反物质粒子反物质粒在和由光环或金场金场组成。

This fertilizer does not contain specified risk material, which consists of the following code and the part of ileum that is within two meters from the intestinum caecum.

这种肥料不包含指定的危险物质。这些危险物质包括以下代码和存在于动物盲肠道2米以内的物质。

In this paper, five oxygenic terpenoids —Carveol (C10H160),Carvone (C10H140),Menthone (C10H180),Carvyl acetate (C12H1802) andCedrol (C15H260) were used as test compounds and barnyardgrass( Enchinochloa crusgalli L.) receptor in rotational regression design experiment.

以5种含氧萜类物质香芹醇、香芹酮、薄荷酮、香芹基乙酸酯和雪松醇为化感物质替代物，以稗草为受体，运用正交旋转回归组合实验，分析物质间的互作效应。

To study the requirement and consumption of natural materials in the process of sustainable development of economic system, the natural material input of China economic system during 1990 to 2002 was analyzed and calculated using complexly the techniques of material flow analysis and structure decomposition analysis.

为研究经济系统可持续发展进程中对自然物质的需求与消耗，综合运用物质流分析方法和结构分解分析方法，对中国经济系统1990~2002年间的自然物质投入进行分析计算。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。