查询词典 B-complex

An alternating voltage between two points A and B,determined along a specified path 1,periodically changes sign,so that if it is assumed to be positive in the direction from A to B,it will be negative in the direction from B to A at the same instant of time.

两点之间的交流电压A和B，沿着指定的路径1中确定的，定期的变化迹象，所以，如果它被假定为积极的从A到B，这将是在消极的方向从B到A的方向在time。

Nigra, B. oleracea and B. carinata belonged to class 2A according to the classification of karyotypes by Stebbins (1971). According to Levitzky's and Stebbin's view, the more asymmetric karyotype a species has, the more evolved it is. Therefore, B. campestris is the furthest evolved species among the elementary species, and B. juncea and B. napus the furthest among the amphidiploid species. Compared with the previous reports, there is no any cytoplasm in the chromosome sample prepared using this protocol which is very useful for the karyotype analysis, as well as the FISH research on Brassica species.

对上述研究结果分析表明：（1）芸薹属复合种是由基本种相互杂交而成；（2）B基因组与A或与C基因组亲缘关系较远，而A和C基因组亲缘关系较近；（3）芸薹属复合种在演化过程中，发生了染色体结构上的重排现象；（4）芸薹属复合种演化过程中，rRNA基因位点发生了减少；所获结果与国外同类报道相比表明：国内的白菜型油菜存在新的rRNA基因位点，即rRNA基因在芸薹属同一物种不同的品种间具有多态性；有关这类研究国内尚未见报道。

The 'permanent truth' is close to Russell's 'apriority' of induction. However, in my opinion, this kind of permanent truth or apriority doesn't have any important sense since the principle of anti-induction, i.e., ' if a t 1 — b t b ,……, a t n — b t n then probably A ?

这种"永真性"与罗素关于归纳原则的"先验性"十分接近，然而，在笔者看来，这样的永真性和先验性没有多大意义，因为反归纳原则即如果 a t 1 — b t b ，……， a t n — b t n 则大概 A ？

To take just one example, consider the set theorist's axiom of extensionality : For any sets A and B , if A and B have the same members, then A is the same set as B .

举例说，考虑集合论的外延公理：对任何集合A和B，如果A和B有相同的成员，那么A作为集合和B同一。

The results showed that in undifferentiated P19 cells, Tra2β1 increased the Flop splicing of GluR-B and BEK splicing of FGF-2R. At the neuronal dominant stage of differentiated P19 (at 9d after RA induction), Tra2β1 increased the Flop splicing of GluR-B, but had no obvious effects on the splicing of FGF-2R. At the glial dominant stage (at 13d after RA induction), Tra2β1 increased the Flop splicing of GluR-B, but had obvious inhibitory effects on the splicing of FGF-2R.

结果表明，在未分化的P19细胞中，Tra2β1能增强GluR-B的Flop剪辑和FGF-2R的BEK剪辑；在P19分化至神经元为主的阶段（RA诱导后第9天），Tra2β1明显增强GluR-B的Flop剪辑，而对FGF-2R的BEK剪辑无明显影响。P19分化至胶质细胞为主的阶段（RA诱导后第13天），Tra2β1明显增强GluR-B的Flop剪辑，但对FGF-2R的剪辑有明显抑制。

In section 3 ,we will introduce bilinear form B on Lie colour algebra L. is called quadratic if B is color symmetric .non-degenerate and invariant .In this case ,B is called an invariant scalar product on L .

第三部分介绍了具有双线性型B的李color代数L，如果B是color对称的，非退化的和color不变的，则称是二次李color代数，B则称为不变数量积，给出了理想非退化的定义。

Result: The breath and circulation in group A is more steadily than those in group B during the operation(P.05).The incidence of body movement and larynx spasm is higher in group B(P .05).The quantity of ketamine is less in group A than group B.

结果：术中A组循环、呼吸功能较B组稳定(P.05)；肢体不良自主运动，喉痉挛等不良反应较B组少(P.05)；A组氯胺酮用量明显少于B组(P.01)；术后A组苏醒较快且平稳。

Activate Mod by pressing PageUp, Once activated a station icon will appear on map (Location: Broker Bus Depot) there you can change into Busdriver and start either of the 2 routes – Stand infront of the portacabin door and press B to change into Driver or back again (Text will appear on screen when you are in the right place), To start Route A stand infront of the information door at the front of the depot – Route B starts outside the toilets door, same applies here the text will appear when in the right location you can now press B to start route.

激活国防部按上一页，一旦被激活一台图标将出现在地图上，那里你可以变成Busdriver并开始任二路线-展台的portacabin盈门，按B变成驱动程序或回来了（文字将显示在屏幕上时，你在正确的地方），要启动A段的立场盈门的信息在前面的车厂-路线B开始厕所外门，在这里同样适用於文本时会出现在正确的位置您现在可以按B启动路线。

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

If each term of the series u1+u2+…un+…is continuous on the interval［a,b］, and this series is uniformly convergent on［a,b］, then its sum function is also continuous on ［a,b］.

若级数u1+u2+…un+…的每一项在［a，b］上连续，而且这级数在［a，b］上一致收敛，则它的和函数也在［a，b］上连续

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。