分断

We conducted high-density resistivity surveying combining with boring data across F1 and F3. The results show that F1 cut the 3rd terrace which formed in late Pleistocene, and the last activity was extensional normal slip by echelonment falling down toward the basin. F3 stroke zigzag and cut the 1st alluvial-proluvial terrace and Holocene stratum with large displacement of fault and wide fracture zone in bedrock, and the last activity is the continuous falling around the fault.

结果表明，F1断层错断了盆地区内晚更新世晚期至全新世早期的Ⅲ级阶地；受拉分构造的影响，该断层最新活动显示了向安远拉分盆地方向迁移的阶梯状递减的张性正断裂性质。F3断层在走向上呈锯齿状，错断了山前Ⅰ级冲洪积阶地及全新统至上更新统地层，断距大，基岩破碎带宽，新活动主要表现为断层附近原地连续沉降。

We have concluded five key tectonics geologic characteristics of Chinese foreland basins based on the study of the sedimentary infill, tectonics evolution, tectonic dynamics, spatial location distribution and structural deformation geometry.(1) The foreland basin is the superimposition of the compression sedimentary stratigraphic sequence with the extension basin, and the foreland basin includes underlying rift basin and upper dustpan flexure deposited basin.(2) The foreland thrustfold structural deformation has occurred four times since the Protozoic, in the Late Caledonian, Late Hercynian, Indosinan and Late Himalayan, respectively.(3) The foreland basin developed based on the control of two factors that are the basin basement collaged by many small plates or terrains and the rejuvenation of ancient orogenic belt, so the foreland basins or foreland thrusts are located in front of ancient orogenic belt.(4) The foreland basins and the rejuvenation of ancient orogenic belt make up a giant basinmountains system resulting from the distant effect of IndiaEurasia collision, which is located on the outer circle of Tibet Plateau, so the thrust deformation intensity, basin deposition range and coupling between orogenic belt and basin changed from strong to weak as from interior to outer circle of Tibet Plateau.(5) There are many structural styles of the thrust and fold belt in different basins, such as brittle behavior faultrelated fold, ductile behavior basementinvolved structure, basementinvolved faultrelated fold, and salt structure.

在综述前人认识的基础上，笔者通过对中国前陆盆地的构造演化历程、沉积充填特征、构造成因及其空间分布规律、构造变形特征等的研究，提出了中国前陆盆地构造地质发育的5个主要特征：(1)两种不同性质的原型盆地发生正反转的叠合性，即挤压构造下作为&本体&的前陆层序与拉张构造下作为&基础&的裂谷、断陷盆地之间的叠置；(2)显生宙以来中国大陆先后发生了4期前陆冲断构造演化的多期性，它们分别是加里东晚期、海西晚期、印支期和喜马拉雅晚期；(3)基于小克拉通基底拼贴后在造山带前缘复活再生的继承性，即统一拼合大陆内部的构造变形导致古造山带的复活，在古造山带边缘发育新生代前陆盆地或前陆冲断带；(4)在空间分布上受环青藏高原巨型盆山体系控制发生陆内变形的系统性，在环青藏高原巨型盆山体系内构造变形强度、盆地沉降幅度、盆山耦合程度等从内环向外环依次降低，从古造山带向克拉通方向构造变形强度依次降低，构造变形样式逐渐简单、构造变形时间依次变新；(5)前陆冲断带的构造样式由于受边界力学条件和沉积地层介质作用而具有多变性，存在沉积盖层内脆性变形的断层相关褶皱、造山带前缘韧性变形的基底卷入构造、与走滑构造相伴生的基底卷入的断层相关褶皱、盆地内部塑性变形的盐构造。

With basis in today's output ratings of large rectifier, some future trends are mentioned and the resulting consequences for the associated fuses are discussed The conditions under which large size 5 fuses are tested are explained in respect to load ability and breaking capacity of the fuse itself and further it is explained how coordination tests with power semiconductors can be conducted.

在大型整流器今天的输出额定值基础上，探讨了未来的某些趋势，讨论了同熔断器有关联的相应结果。解释了对大规格的5#熔断器进行测试的条件同该熔断器自身的负载能力及分断能力的关系，进而说明该熔断器同功率半导体器件的协同测试应该如何进行。

Keywords: high speed fuse;large rectifier;short circuit protection;load ability;breaking capacity

快速熔断器；大型整流器；短路保护；负载能力；分断能力

Two O-CO operating cycles for lcu short circuit breakings capacity.

Icu短路分断能力次数o-co二次。

Based on analysises of characteristics of regional deformation and metamorphism as well as Carboniferous and Permian relict basins, think Qinling-Dabie orogenic belt might have undergone following Basin-mountain transformational process : the ocean basin developed in Silurian-early Paleozoic; ocean basin subduction began in Ordovician; Silurian-early Devonian continent-continent collision happened and the ocean basin disappeared; Carboniferous- Permian, with the strike-slip and pull-apart along the Shangdan fault, a series of small faulted basins formed on the north Qinling mountainous region composing of Pre-Carboniferous metamorphic stratum.

在解析区域变形变质特征，岩浆侵位的构造演化和北秦岭区石炭—二叠纪残余盆地分析基础上，认为秦岭—大别造山带现今的残余的加里东造山带，可能经历了震旦纪—早古生代洋盆发育，奥陶纪洋盆俯冲，志留纪—早泥盆世碰撞造山，洋盆消失，石炭—二叠纪沿商丹带走滑拉分断陷形成上叠于北秦岭加里东造山带之上的石炭—二叠纪沉积盆地的盆山转换过程。

In most cases the short circuit current has already damaged the thyristors until this time.

通常的短路保护最快也都是在发生短路故障后的下一个电流过零点进行分断熄弧，而在这段时间内，大多数情况下晶闸管已经被损坏了，所以需要熔断速度较快的快熔对其进行保护。

CJX2－d Series AC contactor is mainly used in the ciruit AC 50HZ (or-60HZ),rated insulating voltage is 380V unde AC-3 usage it can be combined with suitable thermal overload equipment into a electromagnetic starter to protect the circuit that may appear overload The comactor can be equipped with builbing block style auxiliary con tact group、air delaying contact、Interlonking mechanism and so on ac cessories to combined into time relay、reversible comtactor and star-delta starter.

CJX2-d系列交流接触器主要用于交流50HZ（或60Hz，额定绝缘电压为660V，在AC-3使用类别下额定工作电压为380V时额定工作电流至95A的电器中，供远距离接通和分断电器，并可与适当的热过载电器组成电磁起动器以保护可能发生过载负荷的电路。接触器可组装积木式辅助触头组、空气延时头、联锁机构等附件；组成延时继电器、可逆接触器、星三角起动器。

New products - the current 40 A (25 A, 32A), three-position and with more than 400 A breaking capacity ATS has been put on the market, not only enriched the product specifications, and meet the needs of more customers.

新产品——电流40A以下（即25A、32A）、三位置及400A以上带分断能力A.T.S已相继投放市场，不仅丰富了产品规格，而且满足了更多的客户需求。

It is competently used in distribution circuits of AC380V, 50Hz,or 60Hz,for power distribution and protection of circuits and electrical equipment from overload, undervoltage and shortcircuit, as well as for non-frequent switching under normal working conditions.

H系列塑料外壳断路器，80年代从美国西屋引进，该断路器结构新颖，性能可靠，附件齐全，分断能力高，适用于交流50Hz，或60Hz380V及以下的配电线路中，作为分配电能和保护线路及电源设备免受过载，欠电压和短路危害以及在正常工作条件下作为线路的不频繁转换之用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。