查询词典 luminous flux

The expansion of the H II region produced by the large flux of ionising radiation can significantly reduce the accretion rate when the protostar reaches 50 100M, but accretion can continue in the equatorial plane.

当星坯的质量达到50-100太阳质量的时候，电离辐射产生的HII区的膨胀可以大大削减吸积率，但是在赤道平面上的吸积过程依然可以继续。

A wire for submerged-arc welding against seawater corrosion is developed. The test results indicates that the joint welded with the wire matched with 350 type flux has a good combination of mechanical properties. The wire is suitable for ship hull steel welding.

研制了一种耐海水腐蚀的埋弧焊丝，该焊丝配用350焊剂进行施焊，焊接接头具有优良的综合力学性能，满足了船体钢的焊接要求，填补了该强度级别耐海水腐蚀船用焊丝的国内空白。

The influence of temperature and heat flux direction on the heat conduction characteristics of four common woods, fir, red pine, white pine and larch, were investigated.

以4种常用木材为实验对象，研究了不同温度和热流方向对木材的导热系数、比热和热扩散率的影响，并分析了热物理性质变化的原因。

Quality of flux must be able to remove the oxide layer PCB board, the welding of metal to maintain clean and moist to achieve good spot.

品质优良的助焊剂必须能除去PCB 板上的氧化层，保持金属焊接面清洁及湿润以达到优良的焊点。

So the finite element method is applied to analyze the magnetic fields of the motor. And then some important parameters of the motor are calculated accurately, including flux leakage coefficient, computed pole embrace, and computed armature length and so on .

本文采用了场路结合的方法，首先利用磁路法对电机进行初步设计，然后建立有限元分析模型对电机的参数和性能进行精确分析，采用这样的方法不但可以满足精确性要求，同时可以缩短设计周期。

The results showed that permanent magnet high H and air gap g influence magnetic flux leakage coefficient K, and the validity of Tschernikow algorithm.

结果表明：永磁体高度H、气隙g对漏磁系数K影响较大；区间数学Tschernikow算法在永磁式缓速器设计中是有效的。

The magnetic induction density,flux and magnetic field distribution of the electric machine are solved by finite element method,and the calculation methods of the leakage coefficient ,pole-arc cofficient and inductance are presented respectively.

利用有限元方法对电机的磁感应强度、磁通以及磁力线分布等进行求解，并提出了漏磁系数、极弧系数和电感的计算方法，与实验结果比较证实了计算方法的正确性。

The influences of Halbach magnet axial length on the leakage flux density are analyzed. The relationship between the key design parameters of motor, such as leakage coefficient and the calculated length of the armature, and the structure parameters of motor are obtained.

通过大量的计算，探讨了Halbach阵列永磁电机在转子无铁心情况下影响气隙磁密的各种因素，分析了不同Halbach磁体轴向长度对端部漏磁的影响规律，给出了无铁心永磁电机漏磁系数、电枢计算长度等主要设计参数随电机结构尺寸的变化规律。

As a result of many assumptions which ignores saturation and flux leakage there were errors in the above method.

由于解析法采用了一些假设，忽略了饱和、漏磁等影响，所得到的磁极不对称角度不是最佳值。

D finite element model on flux leakage and test showed the rationality of design parameters and interval mathematics.

三维有限元漏磁分析和试验均证明了设计参数选取的合理性。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。