查询词典 B-complex

The standards specify several types of end user access circuits, each of which involves one or more B channels and one D channel. The B channels are for circuit-switched user communications, and the D channels are primarily for signaling and control (e.g., on-hook and off-hook signaling, ringing signals, performance monitoring, synchronization and error control).

该标准详细列出了几种终端用户电路类型，每一种类型包含一个或多个B信道以及1个D信道。B信道用于电路交换用户通信，D信道主要用于信令和控制（例如挂和摘机机信令、振铃信号、性能监控、同步以及错误控制）。

Company A and Company B subscribe a contract which total value is 1,000,000 . The probability of company B to consignment on time is 50%.

A公司与B公司签署了一个价值100万的合同。B公司按期交货的概率为50%。

Earlier this week, the P.B.G.C. took over the pensions of almost two thousand workers and retirees for Oneida Limited, a maker of cooking tools. The P.B.G.C. says it pays monthly benefits to almost seven hundred thousand retirees in about three thousand six hundred pension plans.

这周初，P.B.G.C接管了奥纳达有限公司的差不多两百个工人的和离退休人员的养老金。P.B.G.C说他们每月要支付差不多700000离退休人员的大约3600种退休计划。

For example, one can use QR decomposition to find the orthogonal matrix B, or use the orthogonal projection matrix of A as B.

例如，人们经常使用的QR分解方法找到正交矩阵B，更直接地，B可以取为矩阵A的正交投影矩阵。

cerebral hemorrhage of 46 ventricle grave (be more than 20ml) patient to divide two groups into A, B randomly, a group 22, use microscopical technical ossicle window opens haematoma of skull grave head cleared art + group of;B of art of the drainage outside ventricle 24, in art of drainage of puncture of haematoma of head of grave of be issued to lower levels of CT fixed position + art of the drainage outside ventricle.

方法46例脑室型丘脑出血(大于20ml)患者随机分成A、B两组，A组22例，采用显微技术小骨窗开颅丘脑血肿清除术+脑室外引流术；B组24例，在CT定位下行丘脑血肿穿刺引流术+脑室外引流术。

Properties of bi quadratic B spline surface are investigated by the subdivision approach, and the control mesh of bi quadratic B spline surface is constructed by employing Doo Sabin subdivision to derive the parametric representation of interpolation surface.

文中利用子分曲面理论研究双二次 B样条曲面的性质，在此基础上利用 Doo- Sabin子分模式构造插值顶点位置和法向的双二次 B样条曲面控制网格，得到插值曲面的参数表示。

As we all know, the B shares is a lot of domestic institutions and individuals, so they voted for the majority of people is not surprising, however, after all, there are 17.433 million shares of B shares voted, indicating there is still opposition to ShenNan Xinhua shareholders perfidious The default behavior.

大家都知道，B股是对境内机构和个人很多，因此他们对多数人投票是不足为奇的，然而，毕竟，有17433000股B股投反对票，这表明仍然有反对深南电股东背信弃义的默认行为。

Magnetic permeability: The ratio of the magnetic induction B to the inducing field strength H; denoted by the symbol :=|B|/0|H| 0 is the permeability of free space = 4π 10-7 weber/ampere meter (or henries/meter) in the SI system and 1 gauss/oersted in the cgs system, so that the permeability is dimensionless.

磁导率 磁导率：磁感应强度 B 与源场强度 H 之比，用符号表示：=|B|/0|H|自由空间磁导系数 0 在国际单位制中为 4π 10-7 韦伯/安培米，在厘米-克-秒单位制中为 1 高斯/奥斯特。因此磁导率是无量纲的。

ConclusionThe factors that significantly influenced L* value in facultative parts were exposed time and the frequency of using sunscreen, factors that influenced b* value in facultative parts was the frequency of using sunscreen, factors that influenced L* value,a* value and b* value in constitutive parts was skin phototype.

对曝光部位L*值影响最大的是日光曝露量和使用防晒霜频率；对曝光部位b*值影响最大的是使用防晒霜频率；对非曝光部位L*值、a*值和b*值影响最大的是皮肤光类型。

Terminal A is positive with respect to B for 0＞ωt＞π, and B is positive with respect to A for π＞ωt＞2π for the first cycle of the sine function.

拟译：在正弦函数的第一个周期，当0＞ωt＞π时，端点A相对B为正，而当π＞ωt＞2π时，端点B相对A为正。

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。