Microwave-assisted synthesis of 14-aryl-14H-dibenzo[a ,j] xanthene;
14-芳基-14H-二苯并[a,j]占吨衍生物的合成
Polymer-supported Sulphonic Acid Catalyzed One-pot Synthesis of 14-aryl-14H-dibenzo[a,j] xanthenes;
聚合物负载磺酸催化合成苯并占吨
The molecule has a Y style structure which is composed of two parts of butterfly-like xanthene and almost planar isobenzofuran.
合成了螺［异苯并呋喃－１（３Ｈ），９＇－（９Ｈ）－２＇－Ｎ，Ｎ－二苄胺基－６＇－二乙胺基占吨］－酮－３，Ｃ＿（３７）Ｈ＿（３４）Ｎ＿２Ｏ＿３，单斜晶系，空间群Ｃｃ，晶体学参数为ａ＝１６。
First-principle calculation for site substitution of 3d transition metal elements in NiAl intermetallic compound;
3d过渡金属在NiAl中占位的第一原理计算
Site substitution of 4d transition metal(TM) elements in L10-TiAl intermetallic compound were investigated with the first-principle method based on plane-wave pseudopotential theory.
通过对Ti7Al8X与Ti8Al7X超胞的合金形成能的计算、比较与分析发现:合金化元素的外层电子数,特别是外层的d电子数对其在L10-TiAl合金中的占位有非常明显的影响,d电子数较少的前过渡金属Y,Zr,Nb和Mo主要优先占据Ti原子位,而d电子数较多甚至是满d壳层的Rh,Pd,Ag和Cd则主要优先占据Al原子位。
In this paper, the evaluation standards are discussed, such as those for waste water quality and scale of wastewater treatment plant, selection of wastewater treatment technology, sludge treatment, land occupation, running cost and capital investment of wastewater treatment plant.
对污水处理厂可行性研究报告中污水水质、污水处理厂规模的确定、污水处理工艺选择、污泥处理、污水处理厂占地、运行费用以及工程投资等评审参考标准进行了探讨 ,污水处理厂规模的确定非常重要 ,污水处理工艺的确定是污水处理厂可行性研究报告的关键 ,建议采用高效低耗污水处理工艺 ,例如 ,氧化沟工艺 (OD)、SBR工艺等 ,其主要经济指标为 :吨水投资 60 0～ 90 0元 ,吨水占地 0 。
The writer has taken land occupation within the Yuanshi section as an example, summed up the experience from the land use of Beijing-Shenzhen Freeway, and raised the initial countermeasures for land occupation in the project of the south to north water transfer.
南水北调工程规模宏大,占地较多,沿线土地资源十分宝贵。
Based on this point,it is necessary to choose a large capacity belt conveyer which can increase arrangement angle and substitute for the ordinary belt conveyer to save the land occupation and cost reduction.
针对山西省山区电厂受到地形、占地指标的制约,选用适应大型机组的高度,布置角度大、占地少,运输能力强的输送机替代受到提升倾角制约的普通带式输送机,以达到降低占地指标、减少工程造价的目的。
God Faith and Divination of Lahu People——Survey of Religious Anthropology in a Lahu Village;
拉祜族神灵信仰与占卜习俗初探——一个拉祜族村落的宗教人类学考察
Illogical Transformation——An Analysis of Complementary combination of ancient divination and witchcraft in "Dun Huang Xie Ben Zhai Jing";
非逻辑的变通——从敦煌写本宅经“镇宅法”看古代占卜、巫术的互补结合
"Tian Yi" in the divination manuscripts of Dunhuang appeared in the ancient books of Taoism and religious activities in the Eastern Han Dynasty.
敦煌数术文献中的"天医"较早出现于东汉时期的道教典籍与宗教活动中,由于具备疗疾治病的信仰功能,故在魏晋隋唐进一步扩展到医学与占卜数术领域。
Synthesis of Xanthone Derivatives and Its Interaction with G-quadruplex
口占吨酮衍生物的合成及与G-四链体作用的研究
Its annual export reaches between 300,000 and 500,000 tons, accounting for half of the world's trade volume.
石蜡年出口量为30～50万吨,占世界贸易量的50％。
Urban centralized space heating area will increase 55 million square meters, and total will reach 0.1 billion square meters;
增加替煤液化气和轻柴油115万吨,折合164万吨标煤,约占终端能源结构的4.0%;
Pond fish culture yielded 2550 tonnes, or 6 per cent, of freshwater fish for local consumption.
年内，塘鱼总产量为2550公吨，占本地淡水鱼消耗量的6%。
During the year, pond fish culture yielded 4 500 tonnes, or 10 per cent, of freshwater fish for local consumption.
年内，塘鱼总产量为4500公吨，占本地淡水鱼消耗量的一成。
1999:1.03 billion tons of coal was unearthed in China, a third of the world production.
1999年中国开采出10．3亿吨煤,占世界总产量的三分之一。
by 2010 the population will approach 1.4 billion and the total demand for grain will be 550 million tons, based on 390 kg per person;
2010年人口接近14亿，按人均占有390公斤计算，总需求量达到5.5亿吨；
Areas hit by soil erosion has reached 360 million hectares, making up 38.2 percent of the country's total land area and registering 5 billion tons of soil losses annually.
水土流失面积达3.6亿公顷，占国土面积的38.2%，每年流失土壤50亿吨。
The predominant fishing method is trawling, which accounted for 67 per cent of the catch, or 85 610 tonnes.
主要的捕鱼方法是拖网，渔获量占年内卸下的海鱼量67%，重量达85610公吨。
The predominant fishing method is trawling, which accounted for 84 per cent of the catch, or 146140 tonnes.
主要的捕鱼方法是使用拖网，渔获量占海鱼卸下量的84%，重量达146140公吨。
and by 2030 the population will peak at 1.6 billion and the total demand for grain will be approximately 640 million tons, based on 400 kg per person.
2030年人口达到16亿峰值，按人均占有400公斤计算，总需求量达到6.4亿吨左右。
This Convention shall come into force12 months after the date on which there have been registered ratifications by at least30 Members with a total share in the world gross tonnage of ships of33 per cent.
本公约应在合计占世界船舶总吨位33%至少30个成员国的批准书已经登记之日12个月后生效。
The ship has a tonnage of twenty thousand.
这艘船的吨位是2万吨。
Tonne: Matric tonne, equivalent to 0.984 long (imperial) tons, or, 102 short (US) tons.
公吨:十进制的吨,等于0.984长吨（英制）或1.102短吨（美制）。
engine room long ton
长吨(1016公斤
cargo carrying capacity
净载货吨位载货吨位载货吨位
Short ton: American ton (2000 lbs.) equal to 0.893 long (imperial) tons, or 0.9072 metric tonnes.
短吨:美国制的吨（2000磅），相等于0.893长吨（英制）或等于0.9072 公吨。
Scheduled Import in Tones per Year
预计进口量(吨/年)