查询词典 for the first time

They cationic monomer Acryloyloxyethyl ethyl trimethyl ammonium chloride and resource-rich, low price, low values of weathering burning coal as its main raw material, aqueous dispersion polymerization methods, through the weathered coal / cationic monomer in-situ polymerization in the international arena for the first time prepared by a high efficiency oil-bearing wastewater treatment agent; use of oil-field wastewater treatment, the waste slurry as raw material, has developed the world's first CWS dispersants and oil fields of the "three mining" using profile control plugging agent, in order to The high value of solid waste has opened up new avenues of applications; integration of related technologies, and open up for the oil field wastewater treatment, an annual output of 300 tons of sets of processes and devices for the first time realized the slop oil and drilling fluid back row of the industrialization of treatment .

他们以阳离子单体丙烯酰氧乙基三甲基氯化铵与资源丰富、价格低廉、燃烧值低的风化煤为主要原料，采用水介质分散聚合方法，通过风化煤/阳离子单体原位聚合技术，在国际上首次制备出高效含油废水处理剂；采用油田废水处理后的废弃物泥浆为原料，在国际上率先开发出水煤浆分散剂和油田"三采"用调剖堵水剂，为固体废弃物的高值化应用开辟了新途径；集成相关技术，开拓出针对油田废水处理、年产300吨的成套工艺和装置，首次实现了油田污油水和钻井返排液的工业化处理。

Free tryptophane, docosoic acid and methyl 14-methy pentadecanate were isolated and identified as monomeric compounds also for the first time from Panax plants. Malonyl-ginsenoside 〓, ginsenoside Ro,〓, Re,〓,〓,〓(8 saponins) and stigmasterol were isolated and identified for the first time from the fruits and molonyl- ginsenoside 〓 was also the first from the plant of panax quinquefolium.

游离色氨酸、二十二碳酸及14-甲基-十五碳酸甲酯是首次从人参属植物中分离鉴定的杂环α-氨基酸和脂肪羧酸类单体化合物；丙二酸单酰基人参皂甙〓、人参皂甙〓及豆甾醇是西洋参果中首次分离鉴定的8种单体皂甙和1种甾醇化合物，M-〓亦为西洋参中首次分离鉴定的皂甙化合物。

This project was established based on the first cooperative development of optical in situ real time detecting technique probing the atomic scale layer-by-layer epitaxy growth of oxide film. Over the last three years, we have given full play to the advantages and characteristics of both sides and have finished the assumptions and plans of this subject satisfactorily. 1. In Institute of Physics, we set up advanced oblique-incidence reflectivity difference equipment and wrote one data acquisition procedure that made the simultaneous detection of optical signal and RHEED signal into reality. 2. The first observation of sustained oscillations over hundreds of monolayers in both real and imaginary signals during the epitaxy growth of SrNb0.1Ti0.9O3 on SrTiO3 substrate in LMBE testifies that oblique-incidence is an excellent method to detect and monitor film epitaxy growth real time. 3. For the first time, we verify that oblique-incidence reflectivity difference method can be used to monitor the layer-by-layer growth mode during continuous growth through the correspondence between optical signals to atomic or molecular step edge density on the growth surface. 4. Phenomenological analysis shows that optical signals comprise three parts, the first is proportional to the average thickness of the film and depends on the bulk phase dielectric response; the second is proportional to the coverage of terraces and depends on the dielectric response of atoms or unit cells in the terrace; the third is proportional to the coverage of step edges and depends on the effective dielectric response of atoms or unit cells at step edges. This makes oblique-incident reflectivity difference technique a quantitative macroscopic method to monitor film growth.

中文摘要：本课题是在合作首次发展了氧化物薄膜原子尺度层状外延生长光学原位实时探测方法的基础上立项的，三年来，我们充分发挥双方的优势和特点，圆满完成了课题的设想和计划。1、在物理所建立了一套先进的光反射差法装置，编写了计算机系统的数据采集程序，实现了两路光学信号和RHEED数据的同步采集和显示。2、用激光分子束外延在SrTiO3基底上生长SrNb0.1Ti0.9O3薄膜，首次观测到连续外延几百个原胞层，周期振荡的光反射差实部和虚部信号，证明了光反射差法是一种能原位实时探测与监控薄膜层状外延生长的好方法。3、首次验证了通过对生长表面原子或分子台阶密度的响应，光反射差法可用于原位实时监测在连续生长条件下薄膜的层式生长模式。4、通过唯象理论的研究，证明光反射差信号由三项组成，第一项只与薄膜的平均厚度和宏观光学电介质常数有关；第二项与分子台阶面覆盖度和台阶面上分子层的光学电介质常数有关；第三项与台阶边缘的覆盖度成正比，并和在台阶边缘的分子的有效光学介电常数有关。

All the compounds were isolated and identified from the bituminous coals for the first time, bis(2-ethylheptyl) terephthalate and 18-ethyl-17-(hexan-2\'-yl) docosanoic acid are new compounds.Further more, a Colourless Oil Liquid, a white acerate crystals containing some alkanes, a white tabular crystals consisting of some fatty acid esters and a white powder crystals in which some fatty acids exist were isolated and analysed by GC/MS for the first time.Through this research, a study method of"classification extract of bituminous coal- separation with silica-gel and gelatin column chromatographies- identification of the isolated compounds by FTIR, GC/MS, LC/MS, 1H NMR and 13C NMR analyses"was established and proved to be a practical approach toward separable and non-destructive identification of some organic compounds in bituminous coals for coal chemistry research.

本研究建立了&原煤分级萃取-硅胶与凝胶柱层析分离与纯化-GC/MS或LC/MS检测-FTIR、MS、1H NMR和13C NMR波谱解析&这一煤中有机化学成分的非破坏性分离与分析的研究方法，并验证该研究方法有效可行。

Compounds 2-4 were isolated from the plants of Chloranthaceae for the first time.The antibacterial activities of these six compounds were tested for the first time.Some compounds may have potential for future study and development as plant-derived oral antibacterial agents.

化合物1为1个新的天然产物，化合物2~4为首次从金粟兰科植物中分离得到，首次测定了6种香豆精类化学成分的抗菌活性，一些化合物具有进一步研究开发成为抑制口腔细菌的天然药用植物制剂的潜力。

Our research, for the first time, on molecular level, supports FRATI's up-regulating effect on β-catenin protein level and function. At the same time, we suggest for the first time that, the up-regulation of FRAT1 may be one of the reasons for β-catenin aberrant accumulation in ESCC, and establish a molecular model, where FRAT11 participate in the development and progression of ESCC.

本实验首次在细胞水平上证明了FRAT1对β-catenin蛋白水平和功能具有正向调节作用，同时首次提出FRAT1的上调可能是食管鳞癌中β-catenin蛋白异常累积的原因之一，并大胆设想FRAT1参与食管癌发生发展的分子机制模型。

For the first time spud drilling: at 22:00 on the December 31, 2009 using the 26 " drills, earth-moving polymer drilling fluid depth of 16.40m for the first time since the Park, the drilling, at 06:00 on January 4, 2010 to the depth of drilling 262.5m, horizons Upper.fars Group at its first drilled, January 5 Electrical Measurement finished, at 04:00 on the 6th, under 20 " cementing casing to the depth of 261.50m, water, mud back to the ground, the cement plug surface depth of 248.50 m, casing pressure test with water 10.0MPa qualified, January 8 cementing electrical measuring the quality of finish, drill cement plug at 20 o'clock on the 10th end, the end of a job opening.

下面这段中文，希望网友帮忙译为英语：第一次开钻钻进：2009年12月31日22：00使用26&钻头、搬土聚合物钻井液自园井深16.40m第一次开钻，2010年1月4日06：00钻进至井深262.5m，层位Upper.fars组第一次完钻，1月5日电测完，6日04：00下20&套管至井深261.50m固井，水泥浆返至地面，水泥塞面井深248.50m，套管清水试压10.0MPa合格，1月8日电测固井质量完，10日20：00钻水泥塞完，结束一开工作。

The existence of so many anomaly stages is probably observed for the first time in numerous cases of satellite thermal infrared researches on earthquakes;③ Each stage lasted quite a long time, with the longest one spanning 13 days;④ An evident geothermal anomaly gradient was distributed along the Longmenshan seismic fracture zone, and such a phenomenon might also be discovered for the first time in satellite thermal infrared earthquake researches.

这在众多的卫星热红外地震研究案例中，可能是迄今为止异常阶段最多的一次；③、单个阶段的持续时间长：最长达13天；④、如此沿龙门山地震断裂带分布的明显的地热增温异常现象，可能在卫星热红外地震研究案例中是首次发现。

For theimmunohistochemical double staining of MBP/NF,S-P method was used for bothstaining,with brown-yellow and purple-blue DAB for the first time and second timestaining.For the immunohistochemical double staining of CD31/IgM andGFAP/Ki-67,the first time staining was performed by S-P method with brown-yellow DAB,while the second time staining was performed by SABC-AP methodwith NBT/BCIP.

双重免疫组化染色包括：MBP/NF，两次染色均用S-P法，第一次显色为棕黄色DAB，第二次显色为紫蓝色DAB，以及CD31/IgM和GFAP/Ki-67，第一次染色用S-P法，棕黄色DAB显色，第二次染色用SABC-AP法，NBT/BCIP显色。

I cry for a star for the first time, and I am crazy for a star for the first time—yes

JK，你是我的精神支柱，因为你我第一次这么彻底的爱上了一个明星，我第一次为了明星哭，第一次因为明

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。