查询词典 D.A.

They can also be used for such materials as following:making planes and spacecrafts,screening high-speed neutron reactors,a superconductor in electrical appliance industry,The vanadium compound can be used as a caterlyzer in sulphuric acid industry,a mixture of ethylene and propylene in symthetic rubber and a desulfurizer in oil-refinery ,an oxidizer in making nylon,pesticide,polyvinyl chloride,a non-propylene decarbonizer in chemical fertilizer industry,amilioration of A.D.A.non poisonkous desulpurtion.

我公司生产的五氧化二钒99.5级，99级，98级以及偏钒酸铵，用途广泛，它可制取金属钒和钒合金，用于钢铁冶炼\机械，飞机以及宇宙飞船制造等行业，快中子反应堆的屏蔽材料和电子工业的超导材料，钒化物应用于硫酸工业催化剂，合成橡胶的乙烯和丙烯交联，石油精炼中的脱硫，尼龙，农药，塑料聚氯乙烯制造的氧化，化肥工业的笨非尔无毒脱碳，改良A，D，A法无毒脱硫，钒化物还因其色泽艳丽而作为颜料应用到玻璃，陶瓷，医药等行业，钒酸盐也是印染业良好的媒染剂。

Results:Results of HE staining after pulsed CO2 laser irradiation: statistical results of vacuole change of the odontoblast and vascular engorgement, hemorrhage of dental pulp were as following: there were statistical difference between A and C, A and D, A and N P

结果：脉冲CO_2激光照射后HE染色结果：成牙本质细胞空泡性变和牙髓血管充血和出血情况的数据经统计学分析后得出：A组和C组、D组、N组差异有统计学意义P

Finally, the author proves the sharp bound for the indices of convergence of n*n reducible Boolean matrices with f〓≥2 the writer lets f〓 be the greatest common divisor of the distinct lengths of the elementary cycles of the associated digraph D (A for a reducible Boolean matrix A , and characterizes the matrices with the largest index.

最后，设f〓为可约布尔矩阵A的伴随有向图D的所有圈长的最大公约数，当f〓≥2时，我们得到了可约布尔矩阵幂敛指数的一个上界和达到最大幂敛指数的矩阵的完全刻划。

Dichlorophenoxyacetic acid (2,4-D), a widely used herbicide, was treated by the ozonization technology in the laboratory.During the 2,4-D ozonization, the main categories of intermediates included chloric aromatics, dechlorinated aromatics and organic acids.Some of these intermediates have relatively high toxicity.Therefore, it is crucial to study the kinetics trend of intermediates diversion.

采用臭氧化高级氧化技术对2，4-D（2，4-二氯苯氧乙酸）污染物进行降解，2，4-D降解过程中会产生含氯芳香中间产物、无氯芳香中间产物和有机酸类中间产物，其中部分中间产物具有较高毒性，因此研究2，4-D臭氧化过程中间产物的动力学变化趋势是非常重要的。

The principal best management practices for Costa Rica are: a well drained soil or a good drainage system in the field (banana yield is hurt with only a few hours of oxygen depletion in the root zone), b adequate control of nematodes, c adequate control of black sigatoka and d a good fertilizer program which includes rates of fertilizer equal or higher than 300-300-600 kg/ha/year of N- P2O5- K2O split in 12 applications during the year.

这些最好的管理措施为： a ）良好排水土壤或田间良好排水系统（根区缺氧几小时就会损害香蕉产量）， b ）有效地防治线虫， c ）有效地防治香蕉叶斑病和 d ）良好的施肥计划，施肥量等于或高于300-300-600公斤 N - P2O5- K2O /公顷/年，一年中分12次施入。

S, said Ben Barres, M.D., Ph.D., a professor of neurobiology at the Stanford University School of Medicine who was not involved in the research.

& &研究显示来自老鼠脑部的同种组织可以使其产生出出迅速分化的细胞，但这只证明了对于人类细胞是有效的，并未参加该研究的Ben Barres， M.D。

We employ a computer to simulate the characteristics of objects and circumstance, and calculate radar video echo date, then through computer inter-face circuit and the relative circuit and D/A conveners, the echoes are outputted to a radar signal processor. The video signal simulator can be use to debug a terminal homing radar system instead of the former part of radar.

该模拟器通过计算机模拟目标和环境特性，产生雷达视频回波信号数据文件，然后通过微机接口电路、回放电路和D／A变换输出该视频信号，接至雷达信号处理机；它可以代替雷达前端对末制导系统进行调试；实验结果验证了该模拟器的有效性。

The typical athlete can store between 400 and 600 grams of carbohydrate [or 1,600 to 2,400 calories] in the muscle as glycogen, says Nanna Meyer, Ph.D., R.D., a research associate at The Orthopedic Specialty Hospital who has worked with Apolo Anton Ohno and other members of the U.S.

一个运动员在肌肉里只能存储400至 600gm 的碳水化合物（1，600 to 2，400 卡热量）作为肝糖，骨科医院的研究人员Nanna Meyer， Ph.D。， R.D。

M, D# h* D w1 k( X L9 G- K. W8 f 45. The Italian influence is likely, whatever Valdez immediate source: the Mexican carpas themselves are said to have originated from the theater pieces of a sixteenth-century Spanish writer inspired by encounters with Italian commedia dell'arte troupes on tour in Spain.4 N# y3 u2 i$?

意大利的影响是可能的，不管Valdez的直接来源是什么：墨西哥carpas戏剧据说本身就来源于16世纪西班牙作家的戏剧作品，而这些西班牙作家受到启发，是因为遇到了意大利c.d.a。

D.D. a professor Of international politics as they fletcher the school at tufts university in Massachusetts .

马萨诸萨Tufts 大学Fletcer学校国际政治方面的的教授D.D。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。