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It is concluded that, first, geochemical data of the surface soils can clearly distinguish two kind of soils, that is, juvenile soils, for example, purple soils, which inherits most geochemical characteristics of the parent rocks or materials, and anthropic soils, the geochemical characteristics of which have been greatly changed as the results of intensive impact from variety of agricultural uses. Second, different soils have typical indicator elements association respectively due to different parent rocks or materials and utilization, such as purple soils, yellow soils (low alkali and alkaline-earth metal contents and pH value), paddy soils (high organic element and heavy metal elements contents) and fluvo-aquic soils (high rock-forming accessory mineral elements contents) and so on. Consequently, it can be suggested that elements association is an important indicator for two key factors (parent materials and anthropic activities) of soil classification. Third, some differences exist between soil genesic classification and result of cluster analysis, because geochemical characteristics of surface soils can not completely represent the foundation applying to soil genesic classification, that is, condition and process of soil-forming, and soil property.

结果表明:浅层土壤的地球化学数据能较好地用来区分两类土壤,即紫色土一类的幼年土壤(在很大程度上继承了母岩、母质的地球化学特征)和受强烈人为活动水耕、早耕熟化的土壤(外来物质的不断加人显著地改变了浅层土壤原有的地球化学性质);(2)各类土壤因母岩母质和利用方式不同,各具明显的标志性元素组合特征,如紫色土、黄壤(低碱和碱土金属元素和pH值)、水稻土(高有机元素、肥料元素和重金属元素)和潮土等,因此,这些元素组合是土壤分类两个要素的重要参照系;(3)浅层土壤的地球化学特征不可能完整地体现成土条件、成土过程和土壤属性这三个发生分类依据,因此,聚类分析结果与发生类型之间存在一定的差异。

It contains quadratic photosynthetic chamber and columned soil fixing body, wherein soil fixing body of canopy leaf chamber bottom set with knob basal portion being corrugation notch, capable of easy inserting amboceptor in soil to form inclosed canopy leaf chamber, amboceptor upper port inosculation with photosynthetic chamber lower wall round opening to make canopy leaf chamber intracavity forming one integral, photosynthetic chamber upper wall sealed by two side glue and photosynthetic film to ensure photosynthetic chamber steady light permeability, photosynthetic chamber sidewall installed one small size fan controlled by external battery and switch, fan capable of rapid making canopy leaf chamber gaseous reaching equalization.

本发明涉及一种用于测定植物冠层群体光合作用的冠层叶室,由正方形的光合室和圆柱状的土壤固定体两部分结合而成,冠层叶室下部土壤固定体设有把手,基部为波纹状切口,可以很容易地把固定体插入土壤中形成密闭的冠层叶室,固定体上口与光合室底壁的圆形开口吻合,使冠层叶室的内腔形成一个整体;光合室顶壁用双面胶和光合薄膜密封,以保证光合室稳定的透光性能;光合室侧壁内安装一个小型风扇,由装在侧壁外的电池和开关控制,风扇可使冠层叶室内的气体迅速达到平衡。

The epitaxial wafer is equipped with two detached quantum traps, by preparing three electrodes on the p-type layer I, the n-type layer and the p-type layer II, the two quantum traps can respectively emit light with different wavelength under applied voltage, after the epitaxial wafer is prepared to LED chip, mixing light with different wavelength emitted by the quantum trap I and the quantum trap II are obtained, or a single-color light emitted by the quantum trap I or the quantum trap II is obtained, thereby greatly extending application area of the LED.

本发明外延片设有两个分隔的量子阱,通过在p型层I、n型层、和p型层II制作三个电极,可使两量子阱在外加电压下分别发射不同波长的光,该外延片制作成LED芯片后,可获得由量子阱I和量子阱II发出的不同波长的混合光,或者分别发出由量子阱I或量子阱II产生的一种颜色的单色光,大大拓展LED的应用范围。

The contents of thiamin, riboflavin, nicotinic acid, total protein and xylose and the weight were determined separately for each part as well as for the whole grain.

合并吸收层和胚两部中核黄素的含量,约相等或稍高于糊粉层中核黄素的含量;合并吸收层,胚和糊粉层三者约占总含量50—60%。

The phase contents and microstructure of the plasma-sprayed coatings were investigated by X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy. The surface roughness of the grit-blasted Ti alloy and the ZrO2 bond coat was measured by a surface recorder.

并藉由以上两个涂层系统,探讨HA 涂层本身层间内聚强度之提升及引入ZrO2介层后,对涂层与钛合金间键结强度之影响,并比较两强化机制间之差异,进而推论HA 涂层的主要结构弱点。

Reefs, reef-mounds and lime mud mounds are all carbonate buildups, and the reefs and banks are important targets for petroleum exploration The reefs, banks and mounds should be divided from each other not only in theory, but also in exploration practice, because of so many differences in sedimentary compositions, fabrics, environments, distribution in time and space, and the characteristics of petroleum geology If the original reef or bank itself was fine reservoir rocks, then it would become a better reservoir after the reservoirconstructive diagenesis The formation of a high quality carbonate reservoir is controlled by two factors: the sedimentary microfacies and the reservoirconstructive diagenesis The first is the basis for the formation of a high quality reservoir, and with the high energy reefbank facies as the best; the latter includes the cataclasis, the dolomitization and the karstification The dolomitization and karstification are the best for the formation of a high quality reservoir The karstification has the widest distribution, profoundest effect, and plays a vital role in the high quality reservoir forming The karst types are quite rich in the limestone reef or bank reservoir, including synsedimentary karst, penesedimentary karst, supergene karst and hydrothermal karst, and so does the dolomitization reef or bank reservoir The formation mechanism of synsedimentary karst and penesedimentary karst is related to the short time exposing and leaching of the cyclical highfrequency shallowupward sequence when the reefs or banks are forming The supergene karst is controlled by the exposing and leaching of tertiary cyclic sequence type I interface after the reefs or banks forming Thus, there developed a great deal of secondary corrosion pores, corrosion fractures and huge caves besides some original pores remained in the reef and bank reservoir Scarcely there are any original effective pores in reefmounds and lime mud mounds, especially in senkes among mounds, but secondary pores could be formed by karstification, and there would likely develop source rocks with high organic abundance

礁、礁丘、丘同属碳酸盐建隆,礁、滩是重要勘探目的层。但各自在沉积组分、组构、环境和时空分布,以及油气地质条件上迥然不同,因而无论从理论还是勘探实践上,都有必要将其各成体系划分开来。礁滩自身为好储集岩,当建设性成岩作用叠加后可形成好的储层。碳酸盐岩优质储层形成,主要受沉积微相与建设性成岩作用两大因素控制。前者是基础,并以高能的礁滩相带为最好;后者主要包括破裂、白云石化和溶蚀三大类,并以白云石化或溶蚀为最优,其中的溶蚀分布最广泛、影响最深刻而对优质储层形成起决定性作用。礁滩储层中的古岩溶类型最为丰富多彩,包括同生期、准同生期、表生期和埋藏期热流体岩溶的所有类型,白云岩化礁滩体也不例外。其中,同生准同生期岩溶的形成机制与礁滩沉积时高频层序旋回向上变浅序列的短暂暴露淋溶有关,表生期岩溶则受控于礁滩沉积后三级层序旋回Ⅰ型界面的暴露淋溶。由此,导致礁滩储层中除了可以也是唯一保存原生孔隙外,还发育了次生溶蚀孔洞缝和大型溶洞。礁丘、灰泥丘尤其是丘间洼地中发育高有机质丰度烃源岩;它们自身没有有效的原生孔隙,但岩溶作用可以形成次生孔隙。

Tower in the first layer of the west arch of a door on each floor above the second floor has two openings, upon the corner of plum-shaped cylinder, overhead bucket care, reduce the tower up level by level, each Diesechuyan.

这塔的第一层西面开了一个拱形门,第二层以上各层有两个门洞,转角倚柱体梅花形,顶置护斗,塔身层层向上缩小,每层迭涩出檐。

First of all, this paper analyzes the distributing situation of sectional temperature of two steel frame models within an hour utilizing the transient thermal analyse module of ANSYS;Secondly, carries on the failure analysis to two steel frame models at high temperature and obtains the fire-resistant limit and critical temperature of steel frame, utilizing the static nonlinear analyse module of ANSYS and considering the influence of geometry nonlinearity and material nonlinearity; Finally, according to the fire-protection designing requirement of structure, deduce a method to computer the thickness of fireprotection layer for steel structure and ask out the thickness of fireprotection layer of two steel frame models according to this method .

首先,利用ANSYS瞬态热分析模块,分析出两个钢框架模型在一小时内钢框架的截面温度场分布情况;其次,利用ANSYS静力非线性分析模块,综合考虑几何非线性及材料非线性影响,对钢框架模型在高温下进行失效分析,分析出两个钢框架的耐火极限及临界温度;最后,根据结构防火设计要求,推导出一种钢结构防火层保护厚度的计算方法,并据此方法求出两个钢框架模型的防火层厚度。

Estimation results show that in summer season, the mesopause with the same height (83 km) as that of the polar mesopause is observed through the latitudes from 48°N to the polar area. In the meantime the equatorial and tropical mesopause are maintained at 97 km, which is critical in shaping the characteristic global "two-level mesopause".

进一步利用逐日数据开展温度梯度诊断确定了中间层顶的位置和温度,在此基础开展考察的结果显示,在夏季,与极区中间层顶高度一致(83 km)的中间层顶稳定地伸展到中纬度(48°N),而热带和赤道地区中间层顶稳定地维持在97 km高度,形成了&两台阶&中间层顶结构。

The structure of the thin film capacitor 1 of this invention is: form sequentially at least the bottom electrode layer 102, the high dielectrics constant oxide film 103 and the upper electrode layer 105 on the semiconductor substrate 101; said upper electrode layer 105 which is a film layer 104 formed by the electrical conductive material which is processable by reactive ion etching, or a multilayered film composed of two kinds of film layers 107 and 108, which are each formed of a conductive material which is processable by at least two kinds of reactive ion etching.

要约 薄膜电容器1是至少在半导体基片101上按顺序形成下部电极层102、高介电常数氧化物膜层103、上部电极层105而构成的薄膜电容器,该上部电极层105由一种仅由可用反应性离子刻蚀加工的导电性材料形成的膜层104,或至少两种由可用反应性离子刻蚀加工的导电性材料分别形成层状的多层膜层107和108构成;经历350℃的热试验之后,对该薄膜电容器1施加OV到2V的驱动电压的薄膜电容器漏电电流密度为1×10 -8 A/cm 2 以下。

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推荐网络例句

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。