查询词典 alternating tensor

He compared the yield of solid plantings of corn and soybeans with alternating strips of the two crops.

他把玉米和大豆单一种植的产量和把两种作物交互条播的产量进行了比较。

The power of Electric Super Low-Volume Sprayer is alternating current of 220 volt.

电动超低容量喷雾器使用220V交流电，高频、高速、电机旋转带动风叶产生高速气流，将药液送到喷管与产生的高速气流会合，将药液雾化成极小的微粒。

High-power rectifier devices can work efficiently to high frequency alternating current into direct current, in the'60s and'70s, Thyristor power rectifier tube and to the development and application of great development.

大功率硅整流器能够高效率地把工频交流电转变为直流电，因此在六十年代和七十年代，大功率硅整流管和晶闸管的开发与应用得以很大发展。

Impedance is a measurement of the resistance of the cable to alternating current and is measured in ohms.

阻抗是缆线对交流电阻力的量测，测量以欧姆为单位。

The specimen is placed in a space with nulled field (such as produced with Helmholz coils) and then subjected to an alternating magnetic field which is then reduced gradually to zero by decreasing the current of the field coil or by pulling the specimen from the coil.

样品放置在一个零磁场(如亥姆霍兹线圈产生的场)作用空间内，然后作用以交变磁场，该交变磁场通过减少激励线圈或将样品从线圈中逐渐抽出使得场强逐渐减小至零。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than that in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

Culm sheaths purple-brown or green-brown, usually alternating with pale and darker stripes, with sparse small brown spots or cloudy brown blotches, margins usually dark brown; auricles and oral setae absent; ligule dark purple brown, truncate, 2–3 mm, margin ciliolate; blade spreading to reflexed, purple-green with yellow margins, linear-lanceolate to linear, flat or sometimes weakly crinkled.

与更苍白并且黑的条纹或绿色棕色，通常交替的竿箨紫褐色，带有稀少小的棕色的点或者多云的棕色的大块斑点，边缘通常暗褐色；叶耳和口头的刚毛无；叶舌深紫色棕色，削去，2-3毫米，边缘具短缘毛；叶片开展到反折，紫色绿色具黄边缘，线状披针形到线形，有时身体虚弱皱曲的平或。

A phase-error corrector adjusts the phase of the oscillator signals in response to a variation in the magnitude of an alternating current component in the quadrature mixer output signal (MO2a).

相位误差校正器向应于正交混频输出信号(MO2a)中的交流分量的幅值变化来调整振荡信号的相位。

Porous alumina templates with different apertures were fabricated by changing the oxidation voltage in two-step anodic oxidation, and then Cu nanowires were synthesized in porous alumina by the alternating current electrochemical deposition method. The Cu/PAA was analyzed by SEM and XRD, the results have shown that Cu nanowires were indeed synthesized in porous alumina which had the same diameter and good structure of wire grating.

通过改变二次氧化过程中的氧化电压，制备了不同孔径的多孔Al模板；采用交流电沉积的方法，制备了含Cu阳极PAA膜。X射线衍射分析表明，阳极PAA膜上确有Cu生成；扫描电镜显示，Cu纳米线粗细均匀，具有很好的线栅结构。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。