波段

After World War II, the technologies developed for radar and rocketry were applied to astronomy, opening the whole electromagnetic spectrum to observation, as well as allowing direct exploration of the solar system.

二战以后，雷达和火箭的技术发展应用于天文学，开始了全电磁波段的观测，并且可以对太阳系进行直接的探索。

Sample and Hold Circuit The sample and hold circuit is used to take a narrow-band measurement of a time-changing signal and to hold that measured value until reset.

采样保持电路采样保持电路，是用一个窄波段测量时间变化的信号，并认为测值，直至复位。

1The scotopic spectral sensitivity curve with its maximum at 490 nm of theround scad shows a relatively heightened sensitivity in the short wavelength regionand a 'shoulder'between 523 nm and 560 nm as compared to the absorption spectrumof the rod pigment.

鲹ERG b波的暗视光谱敏感曲线峰值在490毫微米，和视色素吸收光谱相比较，短波段(小于456毫微米)曲线上翘，长波段也偏高。

We selected two different scale parameters, leaf chlorophyll content and leaf area index, on the basis of the radiative transfer models PROSPECT and SAIL, respectively, for sensitivity study of a set of indices. We aimed to improve the linearity between the indices for chlorophyll content and leaf area index on the basis of combinations of different wave bands.

为了寻找合适的波段位置以改善植被指数与叶绿素浓度和叶面积指数的线性关系，去除饱和区域，进而提高这2个参数的实际估算精度，该文选取了叶绿素浓度和叶面积指数，以辐射传输模型PROSPECT和SAIL为基础，模拟了这2个参数变化对3类高光谱植被指数（归一化植被指数、优化的简单比值指数和优化的叶绿素吸收率指数）的影响。

However, a number of vegetation indices are not linearly related to biochemical components, so these indices may not be appropriate for other vegetative areas. We selected two different scale parameters, leaf chlorophyll content and leaf area index, on the basis of the radiative transfer models PROSPECT and SAIL, respectively, for sensitivity study of a set of indices.

为了寻找合适的波段位置以改善植被指数与叶绿素浓度和叶面积指数的线性关系，去除饱和区域，进而提高这2个参数的实际估算精度，该文选取了叶绿素浓度和叶面积指数，以辐射传输模型PROSPECT和SAIL为基础，模拟了这2个参数变化对3类高光谱植被指数归一化植被指数(NDVI、优化的简单比值指数和优化的叶绿素吸收率指数的影响。

Finally, the scattering theory of D.

之后将适用于软x射线波段的D。

The virtual instrument combined with Ku-Band Microwave Doppler phase detect radar is used for the sea wave height measurement according to the Doppler frequency of the sea wave echo and stores the data.

结合Ku波段多普勒相检雷达，运用虚拟仪器根据海浪回波的多普勒频率来判断海浪变化，测出海浪波高存储数据。

The Kubelka-Munk s law was used to match colors with green camouflage coatings by the use of semi- conductor pigments and conventional pigments.

通过Kubelka—Munk配色定律将低发射率半导体颜料与着色颜料混合制备了林地型绿色伪装涂料，该绿色伪装涂料的光谱曲线满足美军标的光谱通道要求，同时具有较低的热红外发射率，解决了伪装涂料在光学和红外波段的兼容性问题，具有很好的应用前景。

Since the proposed method here only uses red and NIR band to determine shadow, it is also adequate for use with AVHRR, SPOT VEGETATION and geostationary data, which are difficult to identify cloud shadow for a single scene data.

由于这里所提出的方法只用红色和近红外波段，以确定的阴影，这也是适当的，用于遥感，植被和对地静止卫星的数据，这是难以确定云影单现场数据。

Finally, the phase shifter is fabricated and tested.

最后，按照所确定的方案对Ku波段六位数字移相器进行了电路的设计、制作与测试。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐