查询词典 D.A.

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

Methods Twenty eight pure New Zealand rabbits were used, of which four were for nerve localization and the rest were randomized into untreatment group and ultrashort wave groups, after the establishment of the nerve root compression models by inserting a silastic tube into the intervertebral canal to compress the sixth and seventh left lumbar nerve roots.

方法纯种新西兰成年兔28只，4只作神经定位解剖，其余24只全部做手术造成腰神经慢性压迫，随机分成2组，未处理组和超短波组，每组又分10 d组、30 d组和180 d组。压迫模型：将硅胶管从椎间外孔缓慢塞入椎间管内，压迫腰6和腰7左侧神经根直到实验兔被处死，右侧为自身对照侧。

In the Morning I went out into the Island with my Gun to see for some Food, and discover the Country, when I kill'd a She-Goat, and her Kid follow'd me home, which I afterwards kill'd also because it would not feed.

十一月二日我把所有的箱子、木板，以及做木排用的木料，沿着半圆形内侧堆成一个临时性的围墙，作为我的防御工事。

Most Irish folk songs are in "D" and this will enable the player to learn tunes that don't require learning to play accidentals, which isn't always easy with a tin whistle.

大多数爱尔兰民间音乐都是D调的，使用D调笛子的话演奏时就不需要吹奏升降音，在哨笛上演奏半音可不是件容易的事。

Experimental Center of National Level One, Hubei Traditional Chinese Medica l College, Wuhan 430061）Abstract To investigate the protective effects of Jiaweisinisa n on acute liver injury induced by intraperitoneal injection of D-ga lac-tosamise, serum superoxide dismutase, malondialdehyde , glutathioe contents were measured. The pathological changes of liver wer e observed simultaneously. The results showed that JWSNS could decrease serum MD A content, but increase serum SOD and GSH activities in acute liver injury induc ed by D-GalN. It was also found that JWSNS could alleviate the degeneration and necrosis of the hypatocytes.

为研讨加味四逆散防治肝损伤的作用机理，通过动物试验，先用加味四逆散预防给药，再采用D-氨基半乳糖造成大鼠急性肝损伤模型，然后检测大鼠血清超氧化物岐化酶、丙二醛、还原型谷胱甘肽水平，同步观察该方对急性肝损伤大鼠体内脂质过氧化反应及肝脏病理改变的影响，结果表明该方可明显升高大鼠血清SOD、GSH水平，降低MDA水平，肝脏病理学检查亦表明该方使肝细胞变性坏死程度减轻。

The best form of vitamin D - vitamin D3, or cholecalciferol - is also readily available at a low cost in the 800 to 1000 IU per day dose range.

最佳形式的维生素d -维生素d 3，或c holecalciferol-也是现成的一个低的成本在8 0 0至1 0 00国际单位，每天剂量范围内。

Now we are in Spain again, here is a small town called Badajoz, in Chinese its sounds like "Eight Big Rats"...

重新回到西班牙，这里是八达霍斯，听着像叫&八大耗子&；D ；D ；D

The value for the heat of formation of dibenzofuran and the associated standard entropy are derived from a recent evaluation by Chirico et al.

在这工作。推测必需获得热力学数据为种类benzonaphtho-[1，2-d ]， [ 21， d ] 并且[ 2，3-d ] 噻吩是这样，意味深长的分化在这些异构体之间不是可能的。

They confirm what a number of itamin D proponents hae suspected for some time but that, until now, hae not been substantiated through clinical trial," said principal inestigator Joan Lappe, Ph.D., R.N., Creighton professor of medicine and holder of the Criss/Beirne Endowed Chair in the School of Nursing."

它们解开了许多维生素D支持者曾经对其产生的怀疑，直到现在，其效果终于得到了临床验证，&该研究的首席研究员Joan Lappe博士说。他是Creighton的医学教授、护理学院Criss/Beirne资助教授的获得者。&

The terms D-Day and H-Hour are used for the day and hour on which a combat attack or operation is to be initiated.

其实D日是美军常用军事术语，和D日同样常用的另一个军语是H小时。这两个字母用来表示特定作战与行动的开始时间。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。