未知

It is found that Tom was murdered and the police has taken action to look into the case.

显然"谋杀"这个动作的执行者是未知的，此时用被动语态更适宜。

E. , powder, coating, and glass. In the glassy sample, two excitonic PL peaks were observed in the first time. HREM results suggested that it may be associated with an unknown polytype of AgI.

在玻璃体样品中首次观察到两个新的激子发光峰，并配合HREM结果认为它们可能对应一种未知的AgI多型结构。

Four hundred years ago Ponce de Leon set sail into the mysteries of an unknown world in search of the Fountain of Youth, when all the time the secret of that fountain was right within himself.

四百年前 Ponce de Leon 进行了他的神秘航行欲求在未知的世界中找寻"不老泉"的所在，他那时一直相信这股泉水的存在。

Aimming at the small sample of strapdown inertial measurement unit successive test data, a random weighting method is used to get the prior distribution function of population's parameter with the known prior information under the situation that the parameters' format of general distribution is unknown.

针对捷联惯性测量组合历次测试数据小样本的特点，在总体分布参数形式未知的情况下，根据已有的先验信息，提出了通过随机加权法，获得捷联惯组历次测试数据总体参数的验前分布。

In case of the noise statistic being unknown or variable ,adaptive Kalman filter is used to get drift speed of each axle at each test position ,and then drift parameter is calculated.

在噪声统计未知或时变的情况下，每个位置采用自适应卡尔曼滤波解算出平台各轴的漂移角速率，并在此基础上辨识出漂移参数。

After building the model a test face image may be detected by Bayesian posterior probability.

在构建好学习模型后，用贝叶斯后验概率检测未知样本。

Based on the power series expansion of the general flexible matrix of the sub-system, a general expression of the dynamic stiffness matrix of the reduced model was derived from the exact expression of the reduced model for the direct substitution dynamic condensation methods. The general expression was also expressed as a power series of the unknown eigenvalues. After that, the validity and error of the Guyan condensation method were analyzed.

对于动力缩聚直接代入法，本文从降阶模型的精确表达式出发，利用子系统广义柔度矩阵的幂级数展开式，导出了降阶模型动刚度矩阵的一般表达，并把它表示为未知特征值的幂级数形式，在此基础上对 Guyan缩聚法的适用范围和误差进行了一般分析。

The space of not knowing is where fear can take over, remind you of your powerlessness.

这个「未知」的空间/状态是那恐惧可以控制你的地方，他提醒你你是多麼的渺小无力。

If the return value is 'false', the whole #pragma directive is interpreted as unknown and a corresponding error message is issued.

如果返回值为'false'，则整个#pragma 指令被解释为未知的，并引发一个相应的错误信息。

That unknown your feet might be precipitously balancing on IS the other side of the coin of resistance.

未知你的脚可能是轻率的平衡，是另一面的阻力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。