查询词典 convection zone

In general terms the chemical impurities are measured in a silicon rod obtained through the deposition of a small Trichloro silane sample on dedicated pilot test reactors or directly from a core sample taken from a produced polysilicon rod; both are refined by Float-zone technique (the sampling operation are performed according to the relative ASTM F1723-02 -"Standard Practice for Evaluation of Polycrystalline Silicon Rods by Float-Zone Crystal Growth and Spectroscopy").

大体上称化学的杂质在热衷的飞行员测试反应者上被获得过小 Trichloro silane 样品的沈淀的矽竿中被测量或者直接地从一个核心抽取样品从一支被生产的 polysilicon 竿拿；两者都被漂流物-地域技术精炼(抽取样品操作依照比较的美国材料试验学会 F1723-02 被运行-& Polycrystalline 矽漂流物-地域水晶生长和光谱学的竿评估的标准练习&)。

We selected wuli lake, seriously polluted lake, and used long-term laboratory sludge-dredging method to compare the difference of dredged zone and undredged zone, we conducted sludge incubated experiment of two depth of dredging to analyze the difference of nutrient''s release. We investigated the budge of phosphorus monthly and monitored the concentration of phosphorus of the water simultaneously, and analysised the change of the content of phosphorus of water body and further studied the effect of sludge-dredging on the content of phosphorus in water body.

本研究以污染严重的太湖五里湖为研究对象，对室内长效模拟和疏浚区/非疏浚区比较，进行了两种不同模拟疏浚深度的底泥培养实验，同时对疏浚后环五里湖河道进行了磷出入湖量和湖面磷含量同步调查分析，分析底泥疏浚前后水体磷含量变化，结合逐月出入湖量的初步分析，研究疏浚对湖水中磷含量的影响。

The structure of the implanted zone and unimplanted zone was observed by X-ray photoelectron spectroscopy and high voltage electron microscopy.

结果表明：复合渗镀＋PVD法沉积的TiN薄膜呈较为均匀、致密、细小的组织，Ti和N原子由表层呈梯度向内分布。与PVD法沉积的TiN层不同，是属于冶金扩散结合层，渗镀层厚度可达10μm以上。

The wear characteristics of the implanted zone was measured and compared to the performance of unimplanted zone by a pin-on-disc apparatus and an optical interference microscope.

对复合渗镀、PVD以及复合渗镀＋PVD三种工艺制备的TiN层表面形貌、成分及在10％H2S04和3.5％NaCl溶液中的耐蚀性能进行了对比试验研究。

Because the length of the tension zone is both fixed and known, the tension in the web material is determined from the present amount of unstrained web material in the tension zone.

因为张力区的长度固定且已知，所以可根据张力区中的非应变卷筒纸材料的当前量来确定卷筒纸材料中的张力。

The amount of web material added to, subtracted from and present in the tension zone in a sample time period is then converted to an unstrained amount of web material that when combined provides an estimate for the present amount of unstrained web material present in the tension zone.

然后，将采样时间周期内添加到张力区的、从张力区中减去的以及存在于张力区中的卷筒纸材料的量转换为卷筒纸材料的非应变量，当将他们相结合时，给出存在于张力区内的非应变卷筒纸材料的当前量的估算。

Vadose zone is the main channel of groundwater recharge and pollution. The nature of the vadose zone directly controls the velocity and extent of groundwater pollution.

包气带是地下水补给和地下水污染的主要通道，包气带的性质直接控制了地下水的污染化速度和程度。

In traditional study of water flow i n vadose zone, little attention is paid to the effect of air entrapment, while this effect is rather important. T here take place not only water flow, but also air flow in vadose zone.

与传统的包气带中水流研究相比，水气二相流更准确地描述了包气带中的水与空气的流动情况，这对更好地了解固体废物处置场中污染物的运动规律具有重要的意义。

Most removal of chemical and microbiological constituents occurs in the top 2 m of the vadose zone, biological breakdown of organics, nitrification, and denitrification occur in the unsaturated zone and in the aquifer.

大部分的用化学和微生物去除发生在最上层两米的渗流区域。生物学的有机分解，硝化和反硝化作用则发生在未饱和区域和含水层。

The dissertation modifies the model of Holdridge's indexes of lifezone according to the features of the ecological climate of Xinjiang. The influence of the variation of vegetation caused by the climate variation of Xinjiang in recent decades is also analyzed. In recent 40 years, the type of life zone hasn't changed, the area and number of patch changed only. The diversity changed but not too much..That is, diversity of life zone changed in little range, the whole entiroment is still be a rather stable state, whill be goo for desertation expand contrandictorily.

根据新疆生态气候特征和生物地理规律对Holdridge生命地带分类模型进行修正，分析新疆近几十年来气候变化所引起的植被变化对于新疆土地荒漠化的影响。40多年来，新疆生命地带的类型数量并没有产生变化，只是各类型的面积和斑块数的变化，多样性有所波动，但是波动不大，也就是说生命地带多样性的震荡幅度不大，整个生态环境处于一种相对稳定的状态，这种稳定的生态环境状态有利于荒漠化的逆向发展； 7。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。