查询词典 optic

Acousto-optic scanning laser Doppler anemometry , in which the acousto-optic deflectors are used to controll the position of the LDA measurement volume, is a newly developed technique for measuring the spatial distributions and temporal properties of flow field.

通过对空间速度梯度和空间速度分布测量技术的分析与比较，作者认为使LDA测量点位置移动的激光扫描测速技术是诊断空间速度分布的好办法，并针对机。。。

We introduce the acousto-optic interaction physics, the Bragg diffraction, the optical and acoustic characters of the acousto-optic interaction crystal.

声光可调滤波器是依赖于反常声光布拉格衍射工作的声光器件。

Main influential factors on the improvement of H-PRVEP is severity of primary optic atrophy. The time length of compression of optic chiasm and volume of tumor also have influence to a certain extent.

影响H-PRVEP改善的因素主要是原发性视乳头萎缩，肿瘤大小常能反映视交叉受压时间的长短，对视觉功能有一定影响。

In the combined treatment of the craniopharyngiomas, it is very important to prevent the irradiation injury of the surrounding structures such as the optic nerve, chiasm, hypothalamus and vascular structures. In those structures, the optic nerve and chiasm are the most sensitive ones to the irradiation, and their ability to bear the irradiation is about 9 to 12 Gy. So if the irradiation dose is lower than 9Gy, the treatment will be safe. We have not found any report about the bearability and side effect of the hypothalamus related to the gamma knife radiosurgery.

在治疗过程中，预防病变周围的重要结构如视神经，视交叉，丘脑下部和血管结构的放射性副损伤是非常重要的，在这些重要结构中，视神经和视交叉对放射线最为敏感，其耐受能力约为9～ 12 Gy，因此如果对这些结构的放射剂量在9Gy以下，治疗将是安全的，目前尚无有关丘脑下部的耐受剂量和放射性损伤的文献报道。

Methods Two hundred and seven patients with newly diagnosed and treated benign sellar region mass lesions that were touching or compressing the optic chiasma and/or optic tract were Included. The mass lesions included 116 cases of pituitary adenoma 52 cases of craniopharyngioma, 18 cases of meningioma, 14 cases of cystic lession and 7 cases of pituitary abscess. The MR features, positive ratio, relationship of OTE sign to tumor size or pre-operative visual signs were retrospectively analyzed.

207例初次确诊和手术病理证实的鞍区良性占位病变患者，肿瘤均接触或压迫视交叉和/或视束，其中垂体腺瘤116例、颅咽管瘤52例、鞍区脑膜瘤18例、囊肿性病变14例、垂体脓肿7例，回顾性分析MR上OTE征的影像学特点、阳性率、与肿瘤大小和术前视觉功能障碍的关系。

In adult brain, Xvax2 was expressed in ventral region of telencephalon and diencephalon, which contains olfactory bulb, hippocampus, optic chiasma, optic tract and hypothalamus.

Xvax2在成体脑中的分布仍局限于端脑和间脑腹侧，其表达区域主要包括嗅球、端脑侧脑室腹侧的海马区域，以及视交叉、视束初始段和下丘脑边缘。

In approximately 50% cases,A_1 were curved in their courses.A_1 passed across the optic nerve or optic chiasma to the longitudinal fissure where they communicated with the opposite ant.cereb,art.b...

返动脉以一支型和两支型多见，多数起源于前交通动脉平面的大脑前动脉(52.53±2.89%)，通常平行于 A_1的前外侧方，但也有几种复杂的行程，手术时应予注意。

Each vessel ramified several twigs (from 2 to 3) into the lateral margin,superior and inferior aspects of the lateral part of the optic chiasma,and the lateral half of the optic nerve neighboring the OC. In summary,the perforating arteries with long free segments of the external brain took the form of chains or series of irregular loops,ran in the subarachnoid space and feed special areas.

结果 视交叉侧动脉自颈内动脉C2段内侧壁发出，在蛛网膜下腔迂曲走行，起始部位靠上，几乎与视交叉处于同一水平，直径(0.18±0.06)mm，在到达视交叉之前发出2～3条亚支，呈"分水岭"样分布于视交叉侧缘、视交叉侧部的上面和下面靠外侧的部分以及视神经近视交叉处外侧半。

This article analyzed eddy properties of fluids and optical fiber sensors of modulation uminous intensity, Utilize the micro-bending loss property and the result of interfering among many mould optic fibre modes of the optic fibers, have designed a kind of new-type flow of the flow and densimeter of measuring the rate of flow and density at the same time.

本文主要分析了流体的涡漩运动特性，结合强度调制光纤的传感原理，和光纤的微弯损耗特性和多模光纤模式间干涉的结果，设计了一种同时测量流体的流量和密度的新型流量、密度计。

To spread a feeling machine.Different fiber optic light grid's spreading a feeling machine can have a different work wave-length, so can make use of to reply to use a technique for a cent, fiber-optic unite many fiber optic light grids to spread a feeling machine to make distribute type diagraph in one.

不同的光纤光栅传感器可具有不同的工作波长，因此可以利用波分复用技术，在一根光纤级联多个光纤光栅传感器作分布式测量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了