查询词典 reference level

In this dissertation, digital lock-in detection techniques under integer period sampling and non-integer period sampling are separately investigated (1) Under integer period sampling, digital signal sequence is acquired through sampling the measured signal, but digital reference sequence is acquired through mathematical operation, then digital lock-in detection can be realized by calculating crosscorrelation function of digital signal sequence and digital reference sequence Harmonic measure is also analyzed, and a method of measuring harmonic of a periodic signal under aliasing is put forward.

本文对使用采样ADC把模拟信号转换为数字信号并通过计算数字信号的相关函数来实现锁定检测的技术进行了研究，在此基础上设计了一个多功能的数字LIA并在一些科学实验中进行了应用。本文对整周期采样和非整周期采样时的数字锁定检测技术分别进行了研究。(1)在整周期采样时，对被测信号进行采样得到信号序列，而参考序列由数学运算得到，通过计算信号序列和参考序列的互相关函数就可实现锁定检测。

The determination of projective coordinates in different reference ellipsoid ,which is with the transform between Ellipsoid elements in different reference ellipsoid ,gets the Coordinates in corresponding new Ellipsoid,and finally projects to horizontal coordinates.

位于不同参考椭球面下投影面坐标的求解，是通过不同参考椭球间椭球元素的转换，求得对应的新椭球体上的大地坐标，最后投影至平面坐标。

Identic drugs with same dosage form with price-declined drugs were regarded as reference drugs, tablet and capsule, granule, suspension and syrup were also regarded as reference forms.

把与降价品种相同药品相同剂型的未降价品种作为其参比品种，并把片剂与胶囊、颗粒剂与干混悬剂、混悬剂、干糖浆也作为参比剂型。

Eighteen SSR loci in common with a saturated reference linkage map of Prunus allowed a comparative analysis to be made between the two maps, homologies were found among the respective linkage groups, the map in this study showed better identity with peach reference map.

根据18个SSR标记与T×E参考图谱比对，本试验中的11个连锁群对应于参考图谱的G1至G8，标记的线性符合度较好。

Some say it comes from the French "L'inconnu", in reference to the masks worn by the paraders; or "junk enoo," the Scottish settlers' reference to the parades, meaning "junk enough".

有人认为它来自法语单词"未知的"，意指游行者所戴面具，也有人认为它来自苏格兰殖民者所提及的"游行"，即"足够废旧的用品"，最为流行的说法是一位名叫约翰。

Then you will find yourself at the point of letting in your infiniteness as replacement for the sense of tininess and vulnerability that constitutes the first experience of the three-dimensional frame of reference, and therefore the last experience of the three-dimensional frame of reference.

当你允许你的无限本质取代渺小且脆弱的感受（这种感受正是构成三度空间思想架构的最初体验，因此也是三度空间思想架构的最终体验）时，你便会找回你自己。

When the reference is to sth regular or habitual, the use of do for neg and interr is to be preferred. When the reference is to a particular occasion, constructions without do, and, in colloq style, with got, are to be preferred.

用do与不用do的区别不太明确，并无规则可循，仅有下列提示可供参考：指通常或习惯上的动作时，在否定和疑问句中多用do；指一特殊事例时，多不用do，并且在口语中多与got连用。

The distinction is not always clear and there can be recommendations only, not rules. When the reference is to sth regular or habitual, the use of do for neg and interr is to be preferred. When the reference is to a particular occasion, constructions without do, and, in colloq style, with got, are to be preferred.

用do与不用do的区别不太明确，并无规则可循，仅有下列提示可供参考：指通常或习惯上的动作时，在否定和疑问句中多用do；指一特殊事例时，多不用do，并且在口语中多与got连用。

When the reference isto sth regular or habitual, the use of do for neg and interr is to bepreferred. When the reference is to a particular occasion, constructionswithout do, and, in colloq style, with got, are to be preferred.

用 do 与不用 do 的区别不太明确，并无规则可循，仅有下列提示可供参考：指通常或习惯上的动作时，在否定和疑问句中多用 do ；指一特殊事例时，多不用 do ，并且在口语中多与 got 连用。

ABSTRACT A robust control system design method via model reference and inverse system theory is presented in this paper,and compared with the model reference adaptive approach and the inverse system design method.

摘 要 给出了一种基于模型参考最优化方法和逆系统设计方法的鲁棒控制系统设计方法，并将其同模型参考自适应方法和逆系统方法进行了比较。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"