效率高

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

参照传统时域信号设计方案，提出了三种空间调制信号具体设计方案，并从带宽效率和功率效率两性能上进行了比较，结果表明正交幅度调制具有带宽效率高、功率效率低的特点，而且采用的信号点越多其带宽效率就越高，另外其空间信号图案还具有圆对称性，因此非常适合在空间带宽有限的远距离无线光通信中使用。

The electric price of infrared ray equipments is high, making the high cost for the products and low efficiency of drying; The price of boiler and its auxiliaries for the radiating fin drying is high, its repairing fee is large and utilization ratio of fuel is low; Although the drying efficiency of hot wind boiler is high, it has large volume of the equipments and high price and is not suitable for the most enterprises.

采用红外线干燥装置由于电价高，企业生产成本较高，干燥效率低；散热片干燥方式采用的锅炉及其配套设备价格高，维修费用大，燃料利用率低；热风炉虽然干燥效率高，但设备体积大，价格昂贵，大多中小企业不愿使用。

Is one of the earliest professional development and production of electric vehicle speed controller of the private scientific and technological enterprises, the company has a strong professional design and production capacity, products have been a number of brands for the domestic electric vehicles matching efficiency and performance are better than ordinary products, annual production capacity of 200,000 sets, the company has brush controller, using pwm control, high efficiency, with over-current, current limiting, undervoltage,"speed" a wide range of protection features Special high-power brush has controller using the latest electric vehicles for the use of high-life relays and intelligent anti-Speed circuit.

溧阳爱斯特自控器材科技开发有限公司是国内最早专业开发生产电动车调速控制器的民营科技企业，公司具有较强的专业设计及生产能力，产品已为国内诸多品牌电动车配套，其效率及性能均优于一般产品，年生产能力二十万套，本公司生产的有刷控制器，采用pwm 控制，效率高，具有过流、限流、欠压、"飞车"多种保护功能，特别大功率有刷控制器采用最新专供电动车使用高寿命的继电器及智能防飞车电路。

Comparing with traditional LU numerical decomposition algorithm to solve each row of lower triangular matrix L and each column of upper triangular matrix U, the proposed method is easy to program and efficient In addition, the structure symmetry of Jacobian matrix and the experience of compiler optimization are also adopted in this research, it makes less required memory for the proposed algorithm and higher calculation efficiency.

这种算法和求取L阵每列和U阵每行的传统LU分解方法相比，具有编程简单、计算效率高的优点。另外，雅可比矩阵结构对称以及编译器优化的经验也应用到文中，使得算法不仅占用内存较少，且效率较高。

These eigenvalue algorithms are examined under the mode error, i.e, the ratio of out-of-balance nodal point forces that is the difference of maximum elastic nodal point forces and maximum inertia nodal point forces, and the maximum elast...

与ANSYS的子空间迭代和Lanczos法相比，本文的子空间迭代比ANSYS的效率高很多，Lanczos法和ANSYS的效率差不多。大量较大规模的例题显示，本文对特征值算法的改进是十分有效的，算法的健壮性，通用性都达到了高水平。

In the whole growth period, the genotype of high nitrogen use efficiency had low photorespiratory rate and the ratio of photorespiration to photosynthesis, while low nitrogen use efficiency had high photorespiratory rate and the ratio of photorespiration to photosynthesis.

从整个生育期看，氮利用效率高的水稻光呼吸速率较低，其相对光呼吸较小；氮利用效率低的水稻光呼吸速率较高，其相对光呼吸较大。

It includes high power high voltage constant-current-charging system, capacitors bank, discharge control system, power supply of preignition for Xe-flashlamps, general control and diagnostic system. The power conditioning system drives flashlamps that pump the SSHCL. Flashlamps are driven by high voltage Silicon Controlled Rectifiers switched, resonant charged, discharge pulse forming network. The system uses microchip and digital circle which is based on CAN-bus for control and diagnostics. Energy diagnosis and thermal management are controlled by computers.

其中大功率高压恒流充电装置采用了L-C串联谐振电路，充电功率大，效率较高；储能装置采用了多节脉冲成形网络，可产生波形良好的强电流放电脉冲；放电控制装置采用高压大功率晶闸管，开关速度快，工作稳定；预燃与触发装置采用了开关电源电路，效率高、功耗小；总控与测量装置采用基于CAN总线的数字电路和单片机技术，控制冷却系统在激光器出光时对脉冲氙灯进行水冷，并对全系统进行控制和状态检测，同时具有过压、过流、过热等保护功能。

An the orthogonal test of mist eliminator is conducted, and it is found that the angle of corrugated baffle and Reynold number of gas have a great influence on both the separation efficiency and the pressure drop of mist eliminator.

首先对除雾器除雾性能进行正交试验，并采用直观分析法和方差分析法对正交试验结果进行了分析，发现波形板曲折角α对除雾效率η影响显著，对压降影响特别显著，α为45°时，除雾器除雾效率高且压降适中；斜边长与板间距比值L/b对除雾效率η有一定影响，但对气流压降影响不大；气流雷诺数Re对除雾效率η和气流压降影响显著。

As the inserting angle increases, the reinforced efficiency of the unit volume fraction of the pins to the intensity and modulus of the X-...

随着植入角的增加，单位体积分数的Pin对X-cor夹层结构的强度和模量的增强效率均提高；不同直径Pin对X-cor夹层结构影响不同，大直径Pin对X-cor夹层结构强度增强效率高；小直径Pin对X-cor夹层结构模量增强效率高。

An effective sieve size (ie, sieve pore size and the entire screen surface area ratio) larger, then the screen surface of the unit area of higher productivity and screening efficiency.

对于一定的物料而言，筛子的生产率和筛分效率决定于筛孔尺寸。生产率取决于筛面宽度，筛面宽生产率高。筛分效率取决于筛面长度，筛面长筛分效率高。一般长宽比为2。

On closer examination, though, this is not a vote for multilateralism but just the opposite.

仔细审视后我们发现，这并非是对多边主义投出的赞成票，而是恰好相反。

Uncovering their weak spots, so I can defeat them.

揭露出他们的弱点，这样我就可以打败他们了。