查询词典 disappear without a trace

Through Hilbert transform, a signal's plane trace can be get. There are two frequencies in the tested signal, so the signal's plane trace may be looked as the track of the out pole's end when two poles rotate around parallel axles. Using the knowledge of motion synthesis in theory mechanics, a formula to describing the change of plane trace's step length and angle for two-frequency be get. So we may prolongate the tested signal's plane trace from the echo's initial arriving moment, and get a certain length of the signal's prolongation.

通过Hilbert变换可得到测试信号的平面迹线，测试信号中只含有两个频率成分，视为双频信号，双频信号的平面迹线相当于两连杆绕平行轴转动时外杆杆端迹线，利用理论力学中运动合成和瞬心知识，推导出双频信号平面迹线步长平方满足余弦线性复合函数，而迹线转角可视为线性变化，据此可对回波到来之前的测试信号平面迹线作延长，得到一定长度的信号延展段，信号延展段与实测段作差可得到一次、二次回波的第一个波峰值。

Aiming at the disturbing of trace tin and trace germanium in existing simultaneous, using Artificial Neural Networks spectrometry determined simultaneously trace tin and trace germanium in extraction raffinate and stripping raffinate, tested the effect of these two metal separation and extraction.

针对微量锡与微量锗同时存在下相互干扰测定的困难进行研究，利用人工神经网络光度法比较准确的同时测定出萃余水相和反萃取水相中的微量锡与微量锗的含量，验证了两者的分离富集的效果。

According to the scientist inspects knowing, not only here has the above micro-organism to appear and disappear, and has the red deer, the wild boar, the black bear and so on big animal to appear and disappear, even also has the world rare country protect animals goral to appear and disappear, being possible be called "underground zoo".

地下森林中蕴藏着丰富资源，有红松、黄花落叶松、紫椴、水曲柳、黄菠萝等名贵木材；有人参、黄芪、三七、五味子等名贵药材；有木耳、榛蘑、蕨菜等名贵山珍。同时也不乏小动物，游人拾级而下时，常见林间有鸟儿飞行、蛇儿爬行、兔儿跳行、鼠儿穿行，一片生机盎然。

The village shadow which shines in that raindrop to whirl and you who fall sleep the long eyebrow draw beautifully even the life which it lives nearly in this morning which hangs down the court lady place your heart sound which it laughs to scorn becoming the clock of inside life, also to live today, it drifts between the wave of the seat, two which it soaks it took off the small ship cloth and the coffee in the as cup which it puts and it followed it put and and it protected it held and and and it gave and and and and it dyed all with my heart stain position trace your nail which it throws away and it erased it gave and and and and and and it protected it held and and and and and and and it gave and my soul and and and and and and and in city inside and and and and and my soul and and and only only inside oneself loved I which it lives convenience own way in your width to cuddle, the summer when it is intense huyn with the sand you The Kiss even hot weather to disappear, it will leave at transparent transgression autumn and only position case love it will be bumped against when being strenuous, to the world and if you are the possibility only the thing sharing an inside pain are in the side and that it will hang with you protect you hold and and and you give and and and a sufficient you are not and my soul and and by two hands which you are warm mes packing there is from I without without before truth and he protects he holds and and he gives and and and he reads he gives and and and and my minds and and and it is valuable is not the possibility of talking the end my eye which it grudges he sees my soul and

发光的村庄阴影美妙地落睡眠长的眼眉凹道甚而生活它几乎居住在今晨垂悬在法院夫人位置下您的心音它笑蔑视成为里面生活时钟的雨珠旋转和您，今天并且居住，它漂移在位子之间，二波浪它浸泡它离开小船布料并且咖啡在如同它投入和的杯子它随后了而来它投入并且和它保护它举行并且和和它给并且和和和它洗染所有以我的心脏污点位置踪影您的钉子它投掷和它删掉了它给了并且和和和和和它保护了它举行了并且和和和和和和它给了并且我的灵魂和和和和和和和在城市里面和和和和和我的灵魂和和和只只在自己里面爱它居住便利拥有方式在您的宽度拥抱，夏天的I 当这是强烈的huyn 与沙子您亲吻热的天气消失，它将离开在透明违反秋天和唯一位置案件爱它将被碰撞反对当是吃力的，对世界并且如果您是可能性事只分享里面痛苦是在边并且那它将垂悬与您保护您举行并且和和您给并且和和充足您不是并且我的灵魂和和由您是温暖的mes 包装那里的二只手是从I 无无在真相和他保护他之前举行和和他给并且和和他读他给并且和和和我的头脑和和和它有价值不是谈末端的可能性它吝惜他看我的灵魂和的我的眼睛

The function of the contact line for the conjugate tooth trace is solved by this contact trace function; and also solved the parameters of the contact trace.

根据此齿面方程求解出了共轭齿面的接触线方程；并通过实例求解出了与齿面接触区密切相关的参数解。

A detection method of double-threshold constant false alarm movement object on double-base synthetic aperture radar includes finalizing distance compression of various pulse-sampling, dividing orientation time to be multiple CPI, carrying out FFT in each CPI to enter orientation frequency domain, comparing data amplitude of frequency channel at external of clutter region with the first threshold and outputting point trace, making coagulation on point trace, making Hough transform in point trace domain and making decision of the second threshold.

本发明涉及一种用于双基地合成孔径雷达的双门限恒虚警运动目标检测方法，其特征在于：1对每个脉冲采样完成距离压缩；2把方位时间分割成多个相干处理间隔；3在每个CPI内做快速傅立叶变换进入方位频域；4把杂波区外的频率通道的数据幅度和第一门限比较做判决并输出点迹；5点迹凝聚；6在点迹域做Hough变换并做第二门限判决。

Though the contents of trace elements in coal are very low, environment pollution caused by trace elements has been an inarguable fact At present, more researches lay particular stress on the occurrence during coal combustion, and several about coal gasification. The researches about trace elements in fluidized bed gasification are much less, saying nothing of pressurized fluidized bed gasification.

目前国内外研究更多的偏重于燃煤过程，对煤气化过程中微量元素迁移规律的研究较少，关于流化床气化炉型的文献更少，涉及加压煤气化过程中微量元素迁移规律的研究几乎没有。

It is proved that every Lie derivation of nest algebra is the sum of an associative derivation and a general trace. Every Lie isomorphism between nest subalgebras of a factor von Neumann algebra is the sum of an isomorphism and a general trace or the sum of a negative anti-isomorphism and a general trace. Lie invariant subspace of linear mappings on Banach algebras is introduced, and linear maps from nest subalgebra of a factor von Neumann algebra into itself which satisfy the property that the space of derivations is their Lie invariant subspaces are characterized. Simultaneously, it is shown that such maps are Lie derivations modulo the set of scalar multiple of the identity.

得到Lie导子的特征表示，即套代数上的任何一个Lie导子都是内导子与广义迹之和；给出了Lie同构和同构及反同构之间的关系，即因子von Neumann代数中套子代数之间的任何一个Lie同构要么是同构与广义迹之和要么是负反同构与广义迹之和；引入了Banach代数上线性映射的Lie不变子空间，并给出von Neumann代数中套子代数上以导子空间为Lie不变子空间的线性映射的一个刻画，同时也表明在模去数乘恒等映射的意义下，以导子空间为Lie不变子空间的线性映射就是Lie导子。

That needs the trace elements enter the reaction of maintaining free radicals metabolism balance which can enhance the activity of anti-oxidate enzyme,the trace elements which can enforce the oxidate of the free radical needed to be reduced.This may decrease or increase the relevent trace elements.

这就需要血液中能增强抗氧化酶活性的微量元素参与到维持氧自由基代谢平衡的反应中，以及减少利用血液中能增强氧自由基毒性作用的微量元素，这就使得血液中相应的微量元素含量减少或升高。

The results revealed that there were rich trace elements in female silkworm moth, the total contents and essential macro elements of 10 familiar trace elements were 27339.30 mg/kg and 26900.00 mg/kg, respectively. The contents of 4 kinds of trace elements which are needed more in human beings were higher in silkworm moth than that in the important Chinese traditional medical insect moth, insects belonging to Meloidae. The content was also in agreement with human daily requirement.

家蚕雌蛾体富含微量元素，检测的10种常见微量元素的加和量和人体必需宏量元素含量分别为27339.30mg/kg和26900.00mg/kg，其中人体需要量较大的4种微量元素含量高于重要中药资源昆虫芫菁科昆虫蛾体中的含量，并且适合于人体日需要量。

His female bullfighter Lydia gradually Health love, but she was in a vegetative state after the Bulls Zhuangcheng away from her, just because Lydia's ex-boyfriend showed more affectionate than he is like love.

他对女斗牛士莉迪亚渐生爱意，却在她被公牛撞成植物人后离她而去，仅仅因为莉迪亚的前男友表现出好似比他更深情的爱。

I know of none which are not easy to answer, but what I am trying to do now is only by a series of hints to throw some light on the narrow path of legal doctrine, and upon two pitfalls which, as it seems to me, lie perilously near to it.

我不认为有什么难以回答的问题，但我现在要做的仅仅是通过一系列线索，来给法律理论的狭窄路径以及在我看来离它近得危险的两个陷阱提供一些启示。