查询词典 burned area

Then,by means of probability theory and event tree analysis,the fire growing probability and critical time for each phase were calculated,and the average burned area of ship was estimated.

根据不同阶段火灾的特点，求得了各阶段火灾的临界时间，并以其为基础对火灾发生后船舶舱室平均过火面积进行了估计。

After distintegration of magnesite the specific surface area、 activation degree and the surface morphology of burned magnesite are measured.

研究菱镁石活化处理后的分解率、比表面积、活性度，并用扫描电镜研究了它们的表面变化。

Measure the length of the burned area, and calculate the rate of burning along the major axis of the sample.

测算燃烧面积，计算主轴方向上样品的燃烧速率。

Qianlong 15 years (1750), the Qianlong emperor in the Qing Yi here converted to a park, as a centre of the garden on both sides of the four a body , formed from Tsinghua is the Xiangshan Park to a 20 km area at the Royal Garden . 1860-Yi Park was burned British and French allied forces.

乾隆十五年（1750年），乾隆皇帝在这里改建为清漪园，以此为中心把两边的四个园子连成一体，形成了从现清华园到香山长达二十公里的皇家园林区。1860年清漪园被英法联军焚毁。

After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

Based on fire growth probability and burned area , the method of evaluating burned area in building fire was presented in this paper.

以火灾成长概率和火灾发生后的过火面积为评价指标，对建筑火灾过火面积估算的方法进行了初步的探讨。

Extracting burned scar region is one key technique for calculating burned area of forest fire or grass fire by using satellite data.

对过火区域的提取是利用卫星数据进行测算森林或草原火灾过火面积的关键技术之一。

Average fire is surface fire and average burned area is less than 10hm^2. It suggests strengthening the infrastructure, fire resources and fueling management and improving fire prevention and fire attack.

根据西藏森林火灾的发生特点，建议今后在防火基础建设、火源管理、可燃物管理、林火预防和扑救等方面加强工作，提高森林防火的能力。

The black carbon that isolated by density fractionation is from Hsienshi of Changhua county. The surface area is 14 m2/g , and the content of carbon is 17%. Surface area of the black carbon that produced by burned straw is 78 m2/g and the content of carbon is 14%.

从彰化线西土中，使用比重法分离出的黑炭比表面积为14 m2/g，碳元素含量为17%，自行燃烧稻草所产生的黑炭，其比表面积为78 m2/g，碳元素含量为14%，其比表面积差异的原因在於黑炭是否有经过长期在环境中驯化。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。