观测的

A binary composite hypothesis test model with unknown and stochastic parameters was constructed.The sequential probability ratio test with the uniformly most powerful effect was provided for white Gaussian process.This novel method was used to detect the distant series of pipe mass flow difference of leakages produced in stationary and non-stationary operation situations, respectively.

建立了以泄漏信号的幅值为随机参量的二元复合假设检验模型，提出了具有一致最大功效的序列似然比检验方法，并进行了平稳观测序列强泄漏信号和非平稳观测序列弱泄漏信号的检测。

Based on the radar dense data of convectional cloud on June 12,2004 in Yongdeng county,choosing two similar convectional clouds as seeding and non-seeding cloud,the remarkable changes of radar echo parameters of the seeding cloud compared with the non-seeding cloud were discussed in this paper,and the rain enhancement effect was evaluated primarily with ground observational rainfall data.The results show that many aspects of the seeding cloud,such as precipitation,life characteristic and vertical characteri...

利用2004年6月12日甘肃省永登县雷达观测对流云的加密资料，选取了2次相似对流云过程分别作为目标云和对比云，探讨了目标云作业前后较对比云雷达回波有关参数的显著变化，并结合地面雨量点观测资料对地面人工增雨作业效果进行了初步分析，结果表明：目标云在降水、生命期特征、回波垂直特征参数变化方面，表现出作业前后较对比云存在明显差异，目标云作业40 m in后地面产生0.6 mm降水，而对比云则从新生发展到减弱消散阶段经历较短的时间(30 m in)，地面并无降水产生，从而推断本次人工增雨达到了一定的预计效果。

This paper is based on observations of the forests of the south-eastern Tibetan plateau which were made during a six week field study carried out by the author of the forest vegetation of Zitsa Degu gZi rTsa sDe dGu; Chin.

本文基于对西藏高原东南部森林观测，这一持续了六周的观测研究是本文作者在位于阿坝藏族自治州的东北的九寨沟自然保护区完成的。

The study of the effect of vegetation on snow ablation can be used to predict the snowline, glacier and water level. The snow ablation is observed in the Picea crassifolia, shrub, frost edge and grassland of sunny slope at the altitudes between 2600 and 2700m from 2003 to 2007. The daily variable of snow depth and the change of snow coverage and the sensible heat flux of snow surface are used to determine the snow ablation at Pailugou Basin of Water Conservation Forest in the Qilian Mountains. The observation began with the snowfall in October and ended at the completely ablation of snow in May, and got 1344000 observation data.

为研究祁连山植被对积雪消融的影响，利用人工调查积雪深度逐日变化量和积雪盖度变化，并结合空气雪面感热通量观测，对祁连山水源林生态站排露沟流域海拔2600~2700 m青海云杉林、灌丛林、林缘、阳坡草地在2003-2007年的积雪消融进行了研究，每年的观测从10月降雪开始到翌年5月积雪消融完结束，共获取数据134 400个。

Anthropology is a science in that anthropologists use a rigorous set of methods and techniques to document obs ervations that can be checked by others.

人类学是一门科学，因为人类学家采用一整套强有力的方法和技术来记录观测结果，而这样记录下来的观测结果是供他人核查的。

By adopting the smooth pseudo Wigner-Ville distribution and Gabor expansion, the paper expands the attenuation curves of induced electromotive force of the typical two-layer (D-and G-type) geo-electricity models and three-layer (H-, A-, K-and Q-type) geo-electricity models to the two-dimensional time-frequency plane.

虽然观测数据如感应电动势有较大的数值，但实际上探测深度却大大减小了。当有上覆低阻层存在时，要探测同样的深度，需要较长的观测时间。

Real GPS observations were used to test the performance of the proposed filter.The results show that the method has the potential to improve the quality of GPS results,which can successfully extract the desired vibration signals from the point coordinat...

对GPS实际观测资料进行分析，结果表明：采用该方法不仅能从坐标序列中成功提取结构振动信息，也能正确分离载波相位双差观测值的残差序列中的结构振动和多路径效应影响，因而在提高GPS定位精度上具有较大的应用潜力。

Since the improvement of the observation, especially at high redshift and the advancement in the nuclesynthesis in the star, more and more people pay close attention to this field.

近十年来由于观测手段，尤其是对高红移的观测手段的提高，以及在恒星核合成研究方面取得的新进展使得此领域再次为人们关注。

Making the simultaneous observations required careful planning between teams at the two locations, and is the first time that astronomers have caught a flare by synchronising their observations in this way.

进行这种同步观测需要异地的两个小组之间的详细规划。这也是天文学家们首次通过这样的手段同步观测到闪耀。

Being different from previous studies, global positioning system Dropsonde data collected during the Dropwindsonde Observations for Typhoon Surveillance near the Taiwan Region were chosen to study the thermal and dynamic structure for its two typical periods of life. Two surveillance flights were carried out throughout its lifetime.

在海上观测资料较为稀缺的情况下，应用DOTSTAR (Dropsonde Observations for Typhoon Surveillance near the Taiwan Region)对&龙王&不同发展时段的两次GPS Dropsonde观测资料，对其动力、热力及非对称结构的变化情况进行分析。

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％。