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PAHs ratios are used to identify the source of PAHs, the result showed that the major source of 16 PAHs in Urumqi Xinshi district was coal-bustion and vehicle discharges . Mercury in TSP samples were digested by aqua regia and analyzed by AFS analyzer .The results showed that : the concentration of mercury was 0.869-1.91 ng m-3.Compared with other cities in the rest of the world , the concentration of mercury was very high. The concentration of mercury in heating season was lower than that in no-heating season.

对大气颗粒物样品中的汞,采用王水于特弗龙消解罐中加热消解的方法进行处理,稀酸定容后采用原子荧光光谱法对样品中的汞进行测定,测定结果为。869-1.91 ng m-3,与国外城市相比较高;实验测得非采暖期乌鲁木齐大气颗粒物汞浓度的均值高于采暖期颗粒物中的汞浓度,其原因可能是由于随着非采暖期温的升高,长期积累在土壤、水体环境中的汞向大气中释放,附着在颗粒物上,过了燃煤的影响。

The drugs include Rehannia glutinosa Libosh, Forsythia suspense Vabhl, Ligusticum chuanxiong Hort, Pheretima aspergillum, etc. The mice in group B~D started to be treated with blood-cooling and blood flow-promoting drugs by gastrogavage once daily from 1 week before radiation.

中药汤剂由生地、川芎、丹皮、桃仁、莪术、连翘、地龙组成,通过加热浓缩成生药2.0g/ml,3个中药治疗组分别按成人(按60公斤计算)每公斤体重剂量的5、10、20倍计算给药量,于照射前1周开始用灌胃法给药,每日1次。

The 1970s and 1980s were boom times for AstroTurf, made from heated nylon. It was first used in 1966 in Houston's Astrodome (recently famed for hosting evacuees from Hurricane Katrina).

直到70,80年代,爱奇得富公司迅速发展,以加热后的尼龙为材料制成草皮。1966年,此项产品首次应用于休斯顿太空人体育馆(最近因成为卡特里娜号飓风受灾者避难地而闻名),反响不一。

The key points of sensorless technology in PMBLDCM are to study a method which can detect rotor position accurately by simply method in whole speed range. After analyzing current sensorless methods of the PMBLDCM, it is found that those methods are successful at middle and high speed, but they often fail to detect rotor position at low speed when the back electromotive force is small or zero.

纵观目前的永磁无刷直流电机的无位置传感器控制方法,比较成熟而可行的方法多集中于电机在中高速区域运行时,能够较准确估计转子位置;电机处于低速、极低速、静止状态时电加热管,因为反电动势幅值较小或者为零,而无法正常工作。

Whether heated or not, this substance would never be absorbed by water.

不管是否加热,这种物质都不会溶解于水。

Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.

凭借这份资料和进一步的分析,朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测:在地球早期的历史上,火山爆发将大量的二氧化硫气体喷射到空中,太阳的紫外线将其分解,产生了奇特的硫同位素比值,这种硫随雨降下,积存于海底沉积层中;一旦到达海底,海底各处的地热出口所产生的温度过高的水把硫加热成硫化物;最终含有镍的岩浆从地幔中涌出,跟硫化物结合形成硫化镍,并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。

Microwave irradiation as a spread medium and calefaction energy sources is widely applied in all fields of science.

微波技术作为一种传播介质和加热能源已被广泛应用于各个科学领域。

Well, back in the 17th century, people discovered that wine made in Madeira actually improved as it sat in the sweltering cargo holds of ships that crossed the equator. Ever since, wine from Madeira has been heated in tanks at more than 100 degrees Fahrenheit to allow the sugars to caramelize.

因为17世纪时,人们发现马德拉地区酿造的葡萄酒存放在闷热的货舱运过赤道带后,口感会大为提升,从此,酿造商们便将马德拉葡萄酒放置于大罐中加热至 100 华氏度(37.7 摄氏度)以上,使酒中的糖分焦化。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以,过量的硝酸可以加热除去;将可溶性钨酸盐和表面活性剂溶解于去离子水中,得到钨酸盐溶液,表面活剂性的加入量为反应原料重量的0-30wt%;将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌,发生沉淀反应,磁力搅拌时间为25-60分钟,得到白色沉淀;将含有沉淀物的溶液作为前驱物加入到反应釜中,发生水热反应,反应温度为100-260℃,反应时间为24~72小时;离心分离,洗涤,干燥,即得所需产物。

The preparing process is described as follows:(1) the raw materials are dispersed in the solvent;(2) the solution is arranged between two electrodes;(3) alternating current with a voltage of 5 V-100V and a frequency of 10Hz-1000Hz is applied to both ends of the electrodes for 5minutes to one hour;(4) the product obtained after being washed with deionized water and pump filtrated or after centrifugal treatment is dried by being heated to 40 centigrade to 100 centigrade to get the nanometer grain, wherein the raw materials in the first step are micrometer materials or nanometer materials such as sulphide, selenide, telluride and oxide; without special requirement on shape or appearance, the materials can be in the shape of a rod, a fork, a star, a block or a sphere; the solvent in the first step can be water, ethanol, acetone, benzene or tetra chloromethane.

步骤为:1将原料分散于溶剂中;2使制成的溶液处于两电极之间;3在电极两端的加交流电,电压为5V-100V,频率为10Hz-1000Hz,时间为5min-1h;将产物用去离子水洗涤、抽滤,或进行离心处理后;4将所得到产物加热到40~100℃进行干燥,得到纳米颗粒。步骤1中原料为硫化物、硒化物、碲化物、氧化物等微米或纳米材料,其形貌不限,可以为棒状、枝状、星状、块状、球形等多种形状。步骤1中的溶剂可以为水、乙醇、丙酮、苯或四氯化碳。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。