双位

Fetch the 64-bit IEEE double-precision number stored at df-addr to the floating-point stack as r in the internal representation.

取得储存於 df-addr 的一个 64 位元的 IEEE 双精确浮点数字，到浮点堆叠以内部表示法成为 r。

An optional 32-bit NCO/mixer in complex mode provides frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair.

TI 公司的DAC56883G是高性能的16位800MSPS双路数模转换器，非常适合3G和4G通信系统的应用。

Material and Methods:From March,2008 to January,2009,250 patients(146 Males and 104 Females,ranged from 18 to 82 years old,mean age was 48 years old) enrolled in the First Affiliated Hospital of Kunming Medical College were performed dual energy scan(Group A,200 patients) and Neuro-DSA scan(Group B,50 patients) using DSCT.The patients were randomly divided into Group A and Group B.Regarding to the justification of scan protocol,100 patients in Group A were selected as sub-group to explore the scan protocol.The image quality Was analyzed both in four categories(4.0/60、4.5/60、4.0/70、4.5/70) of flow rate and total amount of contrast-enhanced material and in three categories(100—150HU、150—200HU、200-250HU) of CT value of left common carotid artery.The comparison of two scan approach was based on image quality,radiation does, postprocessing methods,time of scanning and subtraction and data storage amount.To validate the diagnostic capability of DE-CTA virtual unenhanced images,100 patients in Group A were undergoing head scan both in routine non-contrast program and DE-CTA virtual unenhanced program.Mean CT values,signal-to-noise ratio,image quality,sensitivity of lesion identification,and radiation does were applied to comparison.According to diagnostic results of dual energy of cerebral arterial angiography,62 patients out of 200 patients in Group A were confirmed with cerebral vessel lesions,the results were complied with DSA findings(the time between the two methods were within 1 week).

材料与方法收集2008年3月到2009年1月间在昆明医学院第一附属医院行DSCT CTA检查者250例(男性146例，女性104例，年龄范围18-82岁，平均48岁)，随机分为A、B两组，A组200例行双能量头颅CTA扫描；B组50例行Neuro-DSA扫描。A组前100例按对比剂不同流率和总量分为4组(4.0/60、4.5/60、4.0/70、4.5/70)对图像质量比较；按触发时左颈总动脉内平均CT位分3组(100—150HU、150—200HU、200-250HU)，比较图像质量的差异；对A、B两组血管图像质量、辐射剂量、后处理的方法、扫描和后处理时间及数据的容量进行比较分析；A组中前100例行常规与DE-CTA虚拟平扫的平均CT值、信号噪声比、图像质量、病灶显示情况、辐射剂量的比较分析；A组中行DSA检查62例(两种方法间隔时间均1周内)，比较两种检查方法诊断结果是否符合，并对其中24例动脉瘤行动脉瘤部位、数目、形态、瘤颈显示程度、瘤颈大小及瘤体长径和短径的比较研究。

Dual Inline Memory Module HYS72V32300GR-7.5-C2, provides a 64-bit data path, and this type of interface to the memory of flapper contacts on both sides of the data interface, this interface model is widely used in the present computer memory , the usually 84-pin, because it is bilateral, so a total of 84 × 2 = 168 line contact, so people often called the 168 line to the memory of this memory, it is known as the 168 line memory.

双列直插式存储模块HYS72V32300GR-7.5-C2，提供了64位的数据通道，而且这种类型接口内存的插板两边都有数据接口触片，这种接口模式的内存广泛应用于现在的计算机中，通常为84针，由于是双边的，所以共有84×2=168线接触，所以人们常把这种内存称为168线内存，故称为168线内存条。

Moreover,the othervariants,for example,single egg situated in far from micropyle part,double antipodaland antipodal replacement egg apparatus.

此外还观察到其他一些变异结构，如单卵异位、单卵双套反足细胞和反足细胞团取代卵器形成"假卵器"等。

I disinterred my eightpence and took the road with Nobby, a respectable, downhearted tramp who carried a spare pair of boots and visited all the Labour Exchanges.

我挖出我那八个便士，然后和诺比一起上路了，这是位可敬的同伴，就是意志有些消沉，他背着一双靴子，足迹踏遍了路过的每一家职业介绍所。

Gorat's - my favorite steakhouse - will again be open exclusively for Berkshire shareholders on Sunday, April 29, and will be serving from 4 p.m. until 10 p.m. Please remember that you can't come to Gorat's on Sunday without a reservation. To make one, call 402-551-3733 on April 2. If Sunday is sold out, try Gorat's on one of the other evenings you will be in town. If you order a rare T-bone with a double order of hash browns, you will establish your credentials as an epicure.

我个人最爱的牛排馆-Gorat's为了Berkshire股东年会破例在4月29日星期天开门营业，从下午4点开始营业，一直到晚上10点，请记得星期天事先若没有订位的人请勿前往以免向隅，要预约请在四月2日以后打电话(402-551-3733)，若订不到星期天的位子，也可以试试其它晚上，如果你点的是丁骨\牛排加上双份的牛肉丸的话，你就有资格被称作是老饕。

Gorat's– my favorite steakhouse – will again be open exclusively for Berkshire shareholders on Sunday, May 1, and will be serving from 4 pm until 10 pm Please remember that to come to Gorat's on that day, you must have a reservation . To make one, call 402-551-3733 on April 1. If Sunday is sold out, try Gorat's on one of the other evenings you will be in town. Enhance your reputation as an epicure by ordering , as I do, a rare T-bone with a double helping of hash browns.

我个人最爱的牛排馆-Gorat's为了Berkshire股东年会破例在5/1星期天开门营业，从下午4点开始营业，一直到晚上10点，请记得星期天事先若没有订位的人请勿前往以免向隅，要预约请在4/1以后打电话(402-551-3733)，若订不到星期天的位子，也可以试试其他晚上，记得跟我一样，老练一点地点丁骨牛排加上双份的牛肉丸。

Gorat's – my favorite steakhouse – will again be open exclusively for Berkshire shareholders on Sunday, May 1, and will be serving from 4 p.m. until 10 p.m. Please remember that to come to Gorat's on that day, you must have a reservation. To make one, call 402-551-3733 on April 1. If Sunday is sold out, try Gorat's on one of the other evenings you will be in town. Enhance your reputation as an epicure by ordering, as I do, a rare T-bone with a double helping of hash browns.

我个人最爱的牛排馆-Gorat's 为了 Berkshire 股东年会破例在 5/1 星期天开门营业，从下午 4 点开始营业，一直到晚上 10 点，请记得星期天事先若没有订位的人请勿前往以免向隅，要预约请在 4/1 以后打电话(402-551-3733)，若订不到星期天的位子，也可以试试其它晚上，记得跟我一样，老练一点地点丁骨牛排加上双份的牛肉丸。

Ethene can be chemisorbed on the Lewis acid sites Fe〓 by the C=C double bond.

乙烯分子可通过C=C双键吸附在催化剂表面的Lewis酸位Fe〓上。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。