查询词典 metal detector

" Spinning In metalwork, a technique for making hollow metal utensil s and artifacts."

旋压：金属制品中一种制作空金属容器和人造物品的技术。

" Spinning In metalwork, a technique for making hollow metal utensils and artifacts."

旋压：金属制品中一种制作空金属容器和人造物品的技术。

The young Hugo Schneider had become proficient as a metalworker, and in 1863 he became involved in a small business, making products from sheet metal in Leipzig, south west of Berlin.

年轻人雨果谢德变得熟练作为金属工，在1863年，并且他变得介入一家小企业，做产品由金属板在莱比锡，在柏林西边的南部。

To demonstrate the amazing properties of the metal, the metalworker dashed the cup to the ground, denting it badly.

那不知是什麼金属，但很可能是铝。

One day, a Roman metalworker proudly presented to Emperor Tiberius（ 42 BC- AD 37） a cup made from an unknown metal, which in all likelihood was aluminium.

有一天，罗马一名金属制品工匠得意洋洋，向提比略皇帝（公元前四十二年至公元三十七年）献上一个金属杯子。

The design scheme considers the circuit structure in transistor level by using the principle of adiabatic computing, which can effectively avoid the inevitable problems of metastability and asynchronism signals treatments in FIFO based on conventional complementary metal oxide semiconductor logic. A 16-depth adiabatic FIFO based on CTGAL was achieved.

该方案运用绝热计算原理，基于晶体管级设计电路，有效避免了传统CMOS逻辑的FIFO必然遇到的亚稳态和异步信号处理等难题，实现了深度为16的基于CTGAL电路的绝热FIFO结构。

The results show that the higher yield of CNF obtained by decomposition of carbon monoxide than that of methane over a series of alumina supported Ni/Fe catalysts prepared by deposition-precipitation method is attributed to the role of produced carbon dioxide and the different carbon diffusion mode on metal particle.

结果发现： 1。当采用CO为碳源时，催化剂在36小时内具有较为稳定的活性，当采用CH〓为碳源时，催化剂中Fe的存在不利于得到较高产率的纳米碳纤维；不同的纳米碳纤维产率与生长过程中形成的CO〓及碳在金属表面或者体相中的传递行为密切相关； 2。

Experimental results were reported here regarding the gas phase conversion of CTC to methyl chloride by using transition metal salt composite catalyst embedded on active carbon.

报道了以活性炭为载体，以过渡金属无机盐为复合催化剂，在气相条件下四氯化碳与甲醇反应制备一氯甲烷的研究结果。

The influences of reaction conditions such as material ratio, reaction temperature and time were studied.The optimum preparing condition was that the mole ratio of 1,3-diiminoiso- indoline and trimethoxysilane was 4:3,sodium methylate and tributylamine as additive ,reaction time 11h at 220℃, the yield of metal-free phthalocyanine was 46.7％.

并对反应时间、反应温度、原料配比等影响因素进行了研究，优化了工艺条件，得到的最佳反应条件是在酞菁素和三甲氧基硅烷的摩尔比为4：3，甲醇钠和三丁胺为添加剂，于220℃反应11h，无金属酞菁的最高收率为46.7％。

Due to the ability of the bivalent magnesium cation to form stable chelate complexes with carbonyl compounds,magnesium methylate for example is used as a selective carbonyl condensing agent. Three synthesis routes was proposed based on literatures and comprehensive comparison with other ways. First,Magnesium methylate is prepared by reacting magnesium metal with dry methanol.The magnesium salts of"higher"primary alcohols,i.e.alcohols with ≥ 2 carbon atoms,do not react directly with pure alcohols under normal conditions.In fact catalysts are required to set the reaction in motion and the preparation is performed under pressure at the higher temperatures.

一、直接合成法：本文将镁与无水甲醇直接反应制得甲醇镁；"更高级"的醇（比如C≥ 2的醇）在无催化剂的条件下无法直接和镁进行反应，本文以CCl4为催化剂将无水乙醇与镁直接反应制得乙醇镁，但是以原甲酸三乙酯为催化剂无水乙醇与镁无法反应；不论是以CCl4为催化剂还是以原甲酸三乙酯为催化剂，丙醇均无法与镁直接反应。

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。