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The flow field of RH -KTB vacuum degasser in Magang is analyzed with three-dimensional numerical model established by CFX software platform.

利用CFX数值计算软件建立的数值耦合模型对马钢RH-KTB的流场进行了分析，得出了包括钢包、真空室、上升管、下降管的RH全系统的流场状态及其在精炼过程中的变化规律。

According to study on fully-mechanized coal winning machine research, application and type selection,fully-mechanized drivage technology transformation in complicated geological conditions, fully-mechanized coal winning machine matching systems transformation, and high-stress roadway fast support technology, additional benefits due to normal production replacement are ensured.

通过综掘机的研究应用及选型、复杂地质条件下综合机械化掘进技术改造、综掘机配套系统的改造及高应力巷道快速支护技术等研究，保证了正常生产接续所带来附加效益；单进水平逐年提升，在华丰煤矿21603下平巷，煤层倾角25°～26°条件下，创造出薄煤层半煤岩巷月进尺631 m，日最高进尺28.8 m的纪录；随着综掘机的不断引进以及快速掘进成套技术的大范围推广应用，综掘总进尺占煤巷总进尺的比例由2004年的21.45％上升至现今的 62.34％。

The apprenticeship and qualification contract schemes have proven a particularly effective means of significantly and durably improving the employability of lowskilled workers, in part because of their significant reliance on co-financing on the part of both employers and employees.

而且，提高青年就业率还具有缓解养老金负担的好处。在追加的福利交纳金刚好在预计的运营赤字将最迅速上升的时候滚滚而来的同时，与此相关的养老金费用在本世纪中叶前还尚未到期，而那时预计系统的均衡正在不断地得到改善。

Study of kinetic antibacterial activities of QJ2 against pathogen W-1 was tested by viable bacteria counts and absorbency at 600nm: 106～ 107 cfu/mL cells of W-1 began to decrease in 15 min after mixing with CFS(cell free-supernatant) of QJ2; the bacterial counts decreased to a minimum at 4h, and the numbers of bacteria began to increase after 6h. The cells of QJ2 did not show any sensitivity to its inhibitory substances in CFS. The size of active molecule in the CFS of QJ2 was smaller than 8000 Da by measuring the inhibitory activities of the fluid inside and outside the dialysis cellulose tubing. QJ2 was identified as Flavobacterium ordaratum by traditional morphological and biochemical method and API-20 identification system.

并对拮抗菌QJ2的拮抗作用进行了研究，结果为：QJ2有广泛的弧菌抗菌谱，对37株弧菌的抗菌阳性率达到89.2%(33/37)；用活菌平板计数法和O.D.600nm研究了QJ2培养物的去细胞上清液与病原菌W-1的作用动力学，15min时W-1的细菌数便开始减少，4h时细菌数最少，6h后开始增加，而对照组的细菌数呈逐渐上升趋势；QJ2对自身的拮抗物质不敏感；QJ2抗性物质的分子量不大于8000Da；经常规生理生化方法和API-20细菌快速鉴定系统鉴定，QJ2为气味黄杆菌。

It is a beneficial attempt to reduce accidents happing and rise traffic safety level.

要使逐年上升的交通事故趋势得到有效的控制，逐步降低中国道路交通事故伤亡人数和财产损失，就必须尽快理顺道路交通安全管理体制，建立完善的道路交通安全保障体系，形成系统有效的交通安全管理机制。

Leukemia is the most common malignant diseases of hematological system.

白血病是血液系统最常见的恶性疾病，近年来白血病的发病率呈逐渐上升的趋势。

Secondly, the ground-state ionization potentials from Lithium-like to Neon-like isoelectronic sequences (Z: 37-82) are calculated systematically by using of MCDF method, and the effect and contribution of electron-correction energy and high-order correct are analyzed in detail, then their variational relations with Z are obtained, these shows that Breit interactions become important for the energy as the nuclear charge Z increases, but that of the QED only fluctuates around 0, then a new extrapolation formulae for IPS along an isoelectronic sequence is set up.

其次，用MCDF理论系统地研究和计算了中高Z元素Li-like到Ne-like等电子系列基态电离能(Z=37-82)，详细分析了电子相关能和高阶修正能量的影响和贡献，得到其等电子系列随Z的变化关系，结果表明Breit贡献随着Z的增加而迅速上升，而QED的贡献随Z的变化不大，仅仅在零上下波动，并建立了不同等电子系列电离能的新拟合公式。

Based on a systematic field investigation and laboratory experiments, the structures of arthropod communities and the evalution of dominant predatory enemies in cabbage fields of different seasons were studied. The main results were as follows:1 The structures and their dynamics of arthropod communities in cabbage fields1.1 Species composition and population dynamics of each species of the arthropodcommunities in the cabbage fieldsThe research results showed that the occurrence of Pieris rapae in spring cabbage fields was relatively grave.

本文在田间系统调查和室内试验的基础上，对不同季节甘蓝田节肢动物群落结构及捕食性天敌优势种的评价进行了研究，主要结果如下：1甘蓝田节肢动物群落结构及其动态1.1节肢动物群落物种构成和各种群数量动态研究结果表明，春甘蓝田菜青虫的发生比较严重，菜青虫在调查期间种群数量呈上升趋势，5月初高峰期平均每株甘蓝接近20头；菜蚜与小菜蛾的发生相对较轻，菜蚜在5月中旬有个明显高峰。

A planless POR may lead to system unstable or hang during the boot. Therefore, the thesis provide a new reset IC structure to solve the sequence problem during power ramp-up here.

未经规划之电源起动顺序(POR， Power-on Reset)可能导致系统不稳或不开机，因此，本论文提出一种新型重置信号晶片架构设计以解决电源上升之时序问题。

Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system.

由于此时间常数比上升/下降时间的典型驱动信号小，它增加很少propagational延迟到系统。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。