反

According to this,the reconstruction algorithms such as Linear Back Projection,Filter Back Projection and projection rearrangement method cannot be applied directly and must be improved.

根据这一情况，在医学CT中常用的一些图像重建算法如反投影法、滤波反投影法和投影重排方法都必须加以改进才能引用。

Computer simulation studies were carried out to compare the DR algorithm with the two popular algorithms: the time-domain reconstruction and the filtered back projection.

通过计算机仿真实验比较反卷积重建法和当前流行的时域重建法与滤波反投影法的性能。

The valve of the treatment unit includes a housing, a stationary member, a slide member and a rotatable switch member unit and may also be operated in a backflush mode in which water may be directed in the reverse direction through at least one of the water treatment media to regenerate that media.

该处理单元的阀门一外壳、一静态部件、一滑动部件和一可旋转开关部件单元，并可操作在一反洗模式，在反洗模式中，可在相反方向引导水通过至少一种水处理介质，以再生该介质。

Fourth, the membrane recovering method was found within stationary tubular membrane elements and was compared with rotating flow by using experiment, that is, the unloading pressure recovering method is one of the most efficient method, it may reduce the auxiliary time, such as washing , backflush, reverse filtration, but the tubular membrane is washed or backflush or changed after the cycle period are accumulated numerous times.

第四、对旋转流静止管式膜的再生进行了实验比较，并提出了旋转流膜管可以通过卸压再生，以减少膜管每次使用后的冲洗、反吹等辅助时间，采用该种方法再生的膜管其渗透通量完全能满足要求，当循环使用一定次数后再进行或冲洗或反吹或更换新膜管。

The ultra- micro membrane element we provided not only combines the good mechanical function of imported PP membrane material, but also adopts international advanced air-water back-washing technology, water backflush combining air wash technology as well as cross-current technology.

我们提供的超微膜元件，结合了进口PP膜材料门身优越的机械性能，采用了国际先进的气水反帅洗技术、水反帅联合牛气擦洗技术和错流工艺；可作为水处理行业的RO、NF膜的前处理设备，可使RO、NF进水的SDI≤？

On the research of hydraulic excavator, this paper concentrats on the study of its backhoe working equipment, which can be divided into boom—handle mechanism and bucket mechanism to study respectively.

在液压挖掘机的研究方面，本文集中研究了其反铲工作装置部分，并将反铲工作装置分为动臂、斗杆机构和铲斗机构分别加以研究。

If a backslash character is followed by any other character, the backslash is NOT removed.

如果一个反斜杠后跟随其他任何字符，反斜杠不被移除。

Use two backslashes in order to match a backslash character verbatim.

使用两个反斜杠字符是为了匹配反斜杠。

Use two backslashes to include the backslash character itself.

使用两个反斜杠则包含了反斜杠自身。

Use two backslash characters characters to enter one backslash character in the text literal.

使用两个反斜杠字符来在字面文本值里插入一个反斜杠字符。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新