查询词典 zone

objective the aim of this study is to investigate the expression and the distribution of the nerve growth factor during the period of neural tube development of human embryo.method early development of neural tube was studied in human embryos about 35 gestational days by using immunocytochemical abc technique.result there were ngf immuno-positive substances in the cytoplasm and nuclei of neuroepithelial cells in the ventricular zones of neural tube.in the intermediate zone of neural tube,ngf immunoreactivity was detected in the nuclei of some neurons,or the processes of other neurons which contained no ngf-immunoreactive substances in their nuclei;the expression pattern of ngf in the marginal zone of neural tube was similar to that of the intermediate zone.the density of ngf-immunorecative particles was higher on the rostrum side of neural tube than on the caudal side.the ngf immuno-positive cells were also observed among the somites of embryo under the neural tube.conclusion these results suggest that ngf was an important signal molecule to induce neural tube differentiation,and that ngf may play a significant role in regulation of the biological function of neurons in developing neural tube.

目的 研究捷安肽素的抗真菌作用机理。方法采用形态学方法和同位素标记法。显微形态观察经捷安肽素处理后的供试真菌的形态学变化。进一步采用14c同位素标记的特异底物&尿苷二磷酸-（14c）-葡萄糖&示踪，研究捷安肽素对真菌(1，3)-β-d-葡聚糖合成酶活性反应的影响。结果研究神经生长因子在早期人胚神经管发育过程中的定位表达。方法采用免疫细胞化学 abc法染色，研究35天人胚的发育情况。结果在人胚神经管的室管带中，神经元的细胞质和细胞核ngf免疫反应阳性；在中间带，一部分神经元的细胞核ngf免疫反应阳性，另外一部分神经元的细胞核ngf免疫反应阴性，而其突起ngf免疫反应阳性；在边缘带ngf的表达与中间带相似。在神经管的头侧ngf阳性反应较强，神经管的尾侧ngf阳性反应较弱。结论 ngf在人胚神经管免疫反应阳性，表明ngf可能是诱导神经管分化发育的重要信号分子，提示ngf可能在人胚神经管的发育中具有十分重要的作用。神经生长因子；人胚；神经管；发育

First of all, I, to some basic theory knowledge of the scenic spot, concept, important document of the composition, function, historical development of the scenic spot are described , among them differentiate and analyse the difference between scenic spot, nature reserve , Forest Park , tourist zone , foreign national park especially, pass the comparison in such several respects as nature , definition , establishment conditions , aim , building policy ,etc, can find out there are very great differences in scenic spot and other areas , it is an independent legal area; Secondly, I analyse to China and foreign legislative overview of scenic spot, list the scenic spot in the national park or protection zone system abroad , has made the special" law of protection zone " and " law of national park ", China"s corresponding legislation is more weak , there is not a special scenic spot to legislate at present in China, only an administrative statute that the State Council issued in 1982 -" provisional administrative regulations of scenic spot"; Moreover, I set up with the existing legislative existing problem of scenic spot in our country is it expound the fact to go onning to of our country planning , management, property right that scenic spot exist, it will must set about making " the law of scenic spot" while saving the scenic spot to strengthen the protection management to the scenic spot at the present stage; Finally, I belong to to legislative aim , legislative principle , right, our country of " scenic spot law such basic frames as the system , management system , legal liability ,etc. is it expound the fact to go on..

首先，笔者对风景名胜区的一些基础理论知识，风景名胜区的概念、构成要件、功能、历史发展等问题进行论述，其中重点辨析了风景名胜区与自然保护区、森林公园、旅游区、外国国家公园的区别，通过性质、定义、设立条件、宗旨、建设方针等几方面的比较，可以看出风景名胜区与其他区域有很大差别，是一个独立的法定区域；其次，笔者对中国和国外风景名胜区立法概况进行分析，国外将风景名胜区列入国家公园或保护区体系，并制定了专门的《保护区法》和《国家公园法》，而中国相应立法则比较薄弱，中国目前没有一部专门的风景名胜区立法，只有一部国务院在1985年颁布的行政法规——《风景名胜区管理暂行条例》：再次，笔者对我国风景名胜区存在的规划、管理、产权设置和我国现有的风景名胜区立法存在问题进行论述，现阶段要加强对风景名胜区的保护管理，挽救风景名胜区，必须着手制定《风景名胜区法》；最后，笔者对我国《风景名胜区法》的立法宗旨、立法原则、权属制度、管理体制、法律责任等基本框架进行论述。

To this end, national and provincial government attaches great importance to the rapid development of manufacturing industries in Harbin, in the "Northeast revitalization plan," the State will be Kazakhstan's largest economy in the zone identified as a development axis, and suggested that the priority development of Kazakhstan's largest economy in the zone to build Dalian economic zone

为此，国家和省委、省政府极其重视哈尔滨制造业的快速发展，在《东北地区振兴规划》中，国家将哈大经济带确定为一级发展轴线并提出，优先发展哈大经济带，建设以大连经济区

To perform the above tasks a winder is divided into three principal zones:(1) the unwinding zone,(2) the tension and clearing zone, and (3) the winding zone.

为了完成上述工作，络纱机包括三个重要的区间；(1)退绕区，(2)张力及清洁区；(3)卷绕区。

To perform the above tasks a winder is divided into three principal zones:(1) the un winding zone,(2) the tension and clearing zone, and (3) the winding zone.

为了完成上述工作，络纱机包括三个重要的区间；(1)退绕区，(2)张力及清洁区；(3)卷绕区。

To perform the above tasks a winder is divided into three principal zones:(1) the unwind ing zone,(2) the tension and clearing zone, and (3) the winding zone.

为了完成上述工作，络纱机包括三个重要的区间；(1)退绕区，(2)张力及清洁区；(3)卷绕区。

It is considered that pre-tension stress counteract the compression stress in welding zone generated by thermal expansion, consequently reduce the compression plastic deformation, and depress the tension stress in welding zone when cooling down, and accordingly minish the compression stresses far from the welding zone.

分析认为，预拉伸应力部分抵消了焊接区热膨胀产生的压缩应力，从而减小了压缩塑性变形，进而减小了冷却时焊接区域的拉伸应力水平，相应地远离焊缝区域的压缩应力也随之减小。

A new method to identify _ amylase activity and its producing bacteria : the blue complex was formed by unspecific adsorption , after mixing starch and trypan _ blue . the adsorption weakened when the starch was hydrolyzed to small molecular by _ amylase , and the trypan _ blue was released inside the hydrolyed zone . the starch around the zone which was not hydrolyzed adsorbed free trypan - blue so that the colour of medium became bluer than that of place in hydrolyzed zone

快速鉴定并筛选-淀粉酶及其产生菌的新方法：锥虫蓝染料和淀粉由于静电非特异性吸附结合后使淀粉呈稳定的蓝色，当淀粉被淀粉酶水解后因分子变小吸附力减弱，而让锥虫蓝游离出来，游离的锥虫蓝被周围未水解的淀粉吸附而使颜色加深，淀粉水解区则形成无色、透明的水解圈。

objective to evaluate the clinical effect of high myopia treated with lasik by a small optical zones flying spot scanner machine.methods 364 cases (721 eyes) of high myopia were treated with lasik by the schwind esiris laser machine with small optical flying spot scanner.the ablation zone was single zone or multi zone.the ablation depth was range of 78～187μm.all cases were followed up for 3～12 months.the changes of their visual acuities,subjective manifest refraction and complications were observed.results postoperatively,at one day and 3 month the visual acuities were 1.0 or better in 72.0%（519/721） and 81.7%（589/721）.the diopter within ±1.00 was 89.7%（647/721） and 90.7%（654/721）respectively.the complications include:decentral ablation 3 eyes (0.42%),decentral flap 5 eyes (0.69%),epithelial ingrowth 5 eyes(0.69%),glare 15 eyes(2.08%).conclusion the clinical effect of high myopia treated with lasik by a small optical zones flying-spot scanner machine was safety and efficacy,although it needs more corneal tissues.

目的 评价小光斑飞点扫描式准分子激光lasik治疗高度近视的效果。方法采用德国schwind esiris准分子激光机对364例（721眼）高度近视进行了lasik治疗。切削模式采用单区或多区切削，切削总量为78～187μm。随访3～12个月，观察术后视力、屈光度和并发症等情况。结果术后裸眼视力≥1.0者，术后1天、3个月时分别为72.0%（519/721）、81.7%（589/721）；术后屈光度在±1.00d以内者，术后1天、3个月时分别为：89.7%（647/721）、90.7%（654/721）。主要的并发症有：偏中心切削3眼(0.42%)、瓣位置偏离5眼(0.69%)、角膜上皮植入5眼(0.69%)、眩光15眼(2.08%)。结论小光斑飞点扫描式准分子激光lasik治疗高度近视的临床效果安全有效，但是需要切削较多的角膜组织。

The main target stratum has the following characteristics: dominated by barrier-free clastic tidal facies, tidal facies are divided into three subfacies: supratidal zone, intertidal zone and subtidal zone. The tidal facies in Tazhong Area are mainly dominated by intertidal sand flat, sand-mud-mixed flat, intertidal mud flat and supratidal mud flat subfacies.

研究表明研究层段主要发育无障壁碎屑潮坪沉积相类型，潮坪相进一步区分出潮上带、潮间带和潮下带三个亚相，塔中地区潮坪沉积主要发育潮下带潮汐水道、潮间带砂坪、砂泥混合坪和潮间带泥坪及潮上带泥坪等微相。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。