无法估计的

Suffer visit a passenger I had stayed in Beijing half an year, ever since basic and annual can go, to Beijing's public transportation impression, manage a disorder namely, be being returned basically is not ticket of unmanned carry out (likelihood and solve population of Beijing obtain employment to concern, otherwise cannot understand), the client thinks from which on the door, it which door falls is OK that which door falls, this was the bus order that have to cause completely to original person very shambolic, booking clerk is staring at every person that get off like preventing a thief, this kind of taste is extremely bad to suffer, every person that gets on a car should tear a bill, show monthly ticket of what those who caused work efficiency is low, what also created mood of booking clerk job is fretted of the objective reason that reckons this also is this second tragedy.

受访乘客我在北京呆过半年，其后基本每年都会去，对北京公交的印象，就是治理混乱，基本还不是无人售票(可能与解决北京就业人口有关，要不无法理解)，顾客想从哪个门上、哪个门下都可以，这给本来人满为患的公交车秩序造成了很大混乱，售票员像防贼一样盯着每个下车的人，这种滋味极不好受，每个上车的人要撕票、出示月票什么的造成了工作效率的低下，也造成了售票员工作情绪的焦躁(估计这也是本次悲剧的客观原因之一)。

In 10.2.0.4 database alert log the following error appears: ORA-00494: enqueue held for too long (more than 900 seconds) This error can also be accompanied by ORA-600 [2103] which is basically the same problem - a process was unable to obtain the CF enqueue within the specified timeout (default 900 seconds).

ORA-00494或许还会伴随 ORA-600 [2103]错误的出现，这是Oracle10.2.0.4中引入的一个行为改变。在Oracle10.2.0.4中，如果一个进程在指定的时间（默认900秒）内无法获得CF锁，则CF锁的执行进程会被kill。从Metalink上可以发现，CF enqueue相关的bug是相当的多，10.2.0.4这个行为的引入，估计是Oracle视图对这个问题做出解决的一种尝试。

In the traditional GSM network planning, the revised Hata model serves as the prototype, and the coefficient in the model formula is tuned according to the data obtained in the radio propagation feature test specific to local actual radio environment, so as to obtain the propagation model for practical prediction. A common digital map only contains the clutter information and the digital terrain model information. So the building designers cannot fully allow for the influence of radio propagation, and can only estimate the influence on the building roughly from a traditional perspective, e.g., consider the influence of different clutters through certain clutter offset.

在传统的GSM网络规划中，一般都以修正的Hata模型为原型，再利用规划软件通过导入针对当地的实际无线环境做无线传播特性测试所得的数据对模型公式中的系数进行修正而得到实际预测用的传播模型，一般使用的数字地图仅包括地物信息和高程信息，因此建筑物对无线传播的影响无法充分考虑，只能从统计意义上对建筑物的影响进行粗略的估计，如通过一定的地物偏移来考虑不同地物的影响。

The present paper proposes an analytical method of solution, in which operational calculus and Laplace transform are applied.

将所得结果和以前的结果对照，发现有一些差异；即过去的计算的结果一般使密度偏低，并且在变化较大的区间无法正确地估计及计算出来。本文的方法是严格的，可以知道各处的精确程度。

Ross-Ibarra defends his estimate by explaining that his team couldn't age the bushes using radiocarbon dating, because they couldn't find any old pieces of wood.

Ross-Ibarra为他的估计做出的辩护是他的团队不能使用放射性碳测试年龄的方法来确定这些灌木的年代，因为他们无法找到旧的木头片。

Provided that a visit to current exhibitions or reading catalogues, we don't think that we are able to find any refutations by applying the contemporary aesthetical features of the current age if anyone states that exhibits are from 1980s. The essence of such problems exists in that artists are short of profound concern for our actual life.

我们在看着这些今日的展览和画集时，如果有人说这是20世纪80年代的作品，估计我们无法运用属于今天这个时代的美学特征来反驳，而出现这些问题的根源是艺术家对现实生活缺乏深情关注所造成的。

The key of our method is to reduce the exact controllability of a semilinear system to the observability estimate for the dual system of its linearized system.

另一方面，我们注意到，上述的两种方法无法给出任何能观性不等式中出现的常数的显式估计，因为它们采用的是反证法来吸收低阶项的。

We found that Efron and Thisted's estimates tend to be less stable and slow in convergence. On the other hand, the estimates of Jackknife, Bootstrap, and Chao are likely to be over-biased.

研究发现Efron and Thisted的模型的估计量容易呈现不稳定的震荡，可能会有无法收歛的问题；而Bootstrap、Jackknife与Chao(1992)则会有高估母体种类数的现象。

Treasury bond market, the interest- rate- transmission-effect-testing model has significant parameter estimation, displaying undeclinable influence of monetary policy on interest rate latent factors, negative effect on output and inflation, positive effect on short-term interest rate, and negative effect on long-term interest rate due to inflation expectation decreasing under positive shock of monetary policy.

对于美国为代表的成熟金融市场，利率效应检验的利率期限结构模型参数估计具有高显著性，货币政策对利率潜在因素的影响无法忽略，对产出和通货膨胀都产生负效应，对短期利率产生正向影响、对长期利率则产生负向影响——因为货币政策正冲击显示了货币当局对通货膨胀率的调控态度，长期利率会因预期通货膨胀的下滑而降低。

Because the very many influence network performance factor is unable in the network planning stage to make the completely precise estimate, for example: The antenna is irregular, base depot breakdown and distribution, infrastructure change, all serious influence to signal cover.

由于很多影响网络性能的因素无法在网络规划阶段作出完全精确的估计，例如：天线的不规则，基站故障和分布，基础设施的变化、都严重的影响到信号的覆盖。

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。