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The characteristics and application of the main mining methods of China's metal mines and their improvement and application prospect are discussed. In view of the existing technical basis and the trend of the demand of China's economical development on metal mines' resource, the future development of mines is prospected. Several feasible concepts are given such as the development orientation of mathematical mine and artificial intelligency, optimization of the hauling system of open pit mining and open...

讨论了我国金属矿山主要采矿方法的特点、应用情况、得到的改进及应用前景，针对现有的技术基础以及我国经济发展对金属矿资源的需求趋势，对未来矿山的发展进行了展望，重点提出了数字矿山、人工智能等发展方向，及进行露天开采运输系统优化和地下开采露天化几种可行性的设想，为我国采矿工作研究者提出了几种新的课题。

After comparing with many techniques available for dealing with the open boundary problems, the asymptotic boundary conditions combined with the finite element method are employed for the calculation of 3-D open boundary magnetic fields in ironless PM motor.

根据对各种开域电磁场计算方法的分析比较，本文将渐近边界条件法和有限元法结合解决无铁心永磁电机三维开域磁场计算问题。

There is no ferromagnetic material in the outside of ironless PM motors airgap. Because of this characteristic, airgap magnetic field of ironless PM motor belongs to 3-dimentions (3-D) open boundary magnetic field. Engineering problem of open boundary magnetic field is a hot research issue in the computation electromagnetics field recently.

无铁心永磁电机气隙外没有铁磁材料，其自身的结构特点决定了无铁心永磁电机的气隙磁场属于三维开域磁场，开域磁场工程问题的计算是近年来计算电磁学的研究热点之一。

The Kaska waitress told me that the dining room was only open until 22:00, but the take-out window at the kitchen was open 24-hours.

该Kaska女服务员告诉我，餐厅只营业到22：00 ，但带走的厨房窗口开放24小时。

Bend isin the heart of a swathe of open, rugged country popular with riders ofATVs—open-cockpit vehicles with powerful engines and knobbly tyres to bounceover rough ground.

Bend 处在一个丘陵地带的中心，在那里ATV非常普及。 ATV 是一种敞篷车，马力大，轮胎花纹深，是丘陵地带常用的交通工具。

As a special environment district and the most lifeful public open-space in the city, urban waterfront offers a precious waterside environment and green open space. And it becomes the carrier of social culture.

城市滨水区作为城市特殊的环境地段和城市最富于活力的公共开放空间，可以为拥挤的城市提供了弥足珍贵的亲水环境和公共绿地，并成为城市社会文化的载体。

Treatment options for symptomatic lymphoceles include percutaneous drainage, percutaneous aspiration combined with the installation of a sclerosing agent (bleomycin, doxycycline, povidone iodine, alcohol, or talc),13,15,17 or surgical drainage via open or laparoscopic surgery.1214 Open surgical internal marsupialization of a lymphocele has long been the historical gold standard therapy.

有症状的淋巴管瘤处理选择包括经皮引流、经皮抽吸合并注入硬化剂（博来霉素、多西环素、聚维酮碘、酒精或滑石粉）或通过通过开放或腹腔镜手术术中引流。长期以来，开放性内部袋形缝术一直是治疗淋巴管瘤的金标准。

Considering the state of open-phase and asynchronous operation in largepower unit, the magnetomotive force and harmonic current of stator and rotor aretheoretically analyzed. A fault simulation test is designed, which proves the theoreticalconclusion correct. Finally, in this thesis, the problems with open-phase protection andbreaker failure protection are discussed, and the improved scheme of protection ispresented.

对发电机组非全相异步电动运行状态下，定子绕组与转子绕组磁动势以及谐波电流进行了详细的研究，通过磁动势的矢量分解等方法，得出了电枢绕组电流不对称时磁动势的空间分布，推导出了各次谐波电流在定子绕组、转子绕组及相互间的感应关系；通过试验验证了理论分析结果的正确性。

Open your hearet and open your mide.

闭上你的眼睛，你将会发现。。。。

One overeager passenger rushed to the back of the plane and tried to open the rear door, even though it was already at least partly under water. She got it open a crack and water started flowing in, but the flight attendant there got her pointed to the front.

明天是重要的时间窗农历节气大寒，是一个日线级别的周期趋势转折点，根据当前大盘趋势运行方向，这里的时间周期开始转向下跌周期，这一点同样在小时级别里得到反映。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。