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spectrum ['spektrəm] 
词性及解释
  • n.
    光谱, 范围, 系列
  • 【化】
    光谱
  • 【医】
    光谱, 光系; 波谱; 谱
词形变化
名词复数: spectra
英英解释
  • 1.
    n.a broad range of related objects or values or qualities or ideas or activities
  • 2.
    n.an ordered array of the components of an emission or wave
常用词组
例句
  • 1.
    However, the A.A.P. guidelines note that children with more severe cases of autism spectrum disorder may have serious behavior problems.
    然而,儿科协会的指导方针指出患有更严重的自闭症混乱的儿童可能在行为方面存在严重问题。
  • 2.
    On the basis of a reliable finite element model, the load spectrum as specified in AAR standard and the S-N Curve database for welding joints, regarding the new type of heavy haul open top wagon as the analysis object, fatigue life prediction is cond
    基于可靠的有限元数值仿真模型,以及美国AAR标准中的载荷谱、焊接接头的S-N曲线数据库,以重载新型敞车为应用对象,在设计阶段对其进行了疲劳寿命预测,预测结果表明该车确实存在疲劳寿命薄弱部位。
  • 3.
    Based on the difference of measuring errors between spectrum and a single pulse, the article introduces a procedure which can improve the specification of non-linearity of commercial ADC for spectrum measurement without channel-width-everaging circui
    摘要根据放射性能谱测量的误差并不等于对单个脉冲测量的误差的特点,提出一种先测出模数变换器的道宽,然后利用软件方法进行道宽均匀的技术。
  • 4.
    Abstract: The surface defects of silver coins was analysed with augerelectron spectroscopy (AES), Scanning electronic microscope (SEM) and energy dispersive spectrum (EDS).
    文摘:采用扫描电镜、能量色散谱和俄歇电子能谱检测方法,对银币表面缺陷进行了分析。
  • 5.
    A device for converting electromagnetic radiation in the infra-red, visible ANd/or ultra-violet regions of the spectrum into AN electric current.
    一种把下述光谱范围内的电磁辐射转换成电流的装置:红外线、可见光和;或紫外线。
  • 6.
    Operational AND Spectrum Tests for ATIDS at Dallas/ Fort Worth Airport; Project rept
    在达勒斯/沃斯堡机场进行的ATIDS操作和频谱试验
  • 7.
    A system that divides the frequency spectrum of a signal into a number of bANDs, which are separately transmitted AND then recombined
    一种先将一个信号的频谱分成几个可独立传送的频带然后再合成的方法。
  • 8.
    A compromise must be reached between the "thinness" of the surface larger examined AND the intensity of the infrared spectrum obtained
    应就被检测材料表面层的厚薄同红外线光谱强度之间的关系进行适当选择。
  • 9.
    StarvATion is AT one extreme of the spectrum of food intake; obesity is AT the other.
    饥饿是食物摄入量的一个极端,肥胖则是另一个极端。
  • 10.
    AHS members cover the entire spectrum of the international rotorcraft industry including representatives from government, military, civil operators, engineers, management, and academia.
    AHS国际组织的成员遍及整个国际旋桨飞机工业圈,包括来自政府部门、军方、民航营运者、工程师、管理方面和学术界的代表。
词汇级别

小测验:选择正确的单词

n. 金属镜, 反射镜, 扩张器
  • A.sdpeculative
  • B.sdpeculator
  • C.sdpeculum
  • D.sdpeculation

浏览历史

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    vt. 制造, 建造, 装配, 伪造...
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    n. 传感器...
  • enroll
    vt. 登记, 使加入 vi. 参军, ...
  • author
    n. 作家, 作家的著作, 创始人...

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