封闭的

In 1984, South Africa made the law of regulating South Africa small and medium-sized enterprises behavior-South Africa Close Corporation Act.

而随着中国和南非关系的进一步发展，越来越多的中国人到南非创办中小型企业，目前在国内研究南非封闭公司法这一极具特色的中小企业法律制度尚属空白，因此，对南非封闭公司法律制度的研究有着现实的意义。

On the base of the relativity and the data self-sealing characteristics of circular division measurement, an arbitrary measurement system on circular division and dihedral is built, and the processing method of the dynamic data zero average and the balancing based on self-sealing nature reference are also built.

在圆分度测量的相对性和数据自封闭特征的基础上，建立了基于圆分度和二面角测量的任意角测量系统，和基于自封闭自然基准的动态误差数据零均值处理和平差处理方法。

With the laser power and the time of irradiation increased, the sealing depth of dentinal canaliculi increased.

激光功率不变时，牙本质小管的封闭厚度随照射时间的增加而增加；照射时间相同时，牙本质小管的封闭厚度随激光功率的增加而增加，且具有显著性差异。

Another method studying the diagenetic cementation seal mechanism of fault was established by using whether deposition of silica and carbonate or not.

利用断层压力和泥岩塑性变形极限之间的关系建立了断层紧闭愈合封闭机理的研究方法；利用SiO2和CaCO3的是否沉淀建立了断层成岩胶结封闭机理的研究方法。

There are two modeling methods used in this research area, that is analytical method and numerical method. Analytical method can be used to analyze the sound pressure within enclosures, and to analyze the control mechanisms theoretically, however it can be used for regular cuboids only. Numerical modeling method can manage enclosures with arbitrary boundaries, nevertheless, the results obtained using this method are dispersed sound pressure. It is hard to conduct real time control with this method. The two modeling methods have their own inherent defects.

对于封闭空间的结构声辐射，目前有解析建模和数值建模两种建模方法，解析建模方法可以从理论上对系统进行分析，探讨消声机理，但它只适用于长方体等规则封闭空间；数值建模方法不受空间边界形状的限制，得到的是空间声压的离散结果，难以用于实时控制，两种方法都存在着局限性。

Compared to other models pointed out by foreign scholars, my model was characteristic of multiple periods during evolution of urban systems, complexities of the course of forming urban systems, multiple types of urban functions, periodicity of regional changes of the important regions of urban development, periodicity of dominances of inland central city and seaport gateway city.

此后，随着海疆由开启转为封闭，再由封闭转为开启，最大城市由青岛转为济南，再由济南转为青岛；中心地职能体系由&青岛单中心体系&转换为&青岛、济南双中心体系&，再转换为&青岛单中心体系&；工业发展重点区域也由沿海转向内陆，再由内陆转向沿海；口岸城市的门户职能强度也经历了增强、减弱、增强的不对称&U&型变动；城市体系的空间结构经历了碎化—整合—碎化的过程。

XGN49-40.5[DXG-40.5] indoors gas insulation metal seal switching gear (hereafter refers to as "sufficient wind chest") is our company introduces the Chinese Electric power Federation Dragon Source Electric power Research institute technology development, the development, the production high tech product, its technical performance satisfies GB/T11022 "High-voltage switch Equipment And Control device Common Specification" and GB3906 "3~35kV Exchange Metal Seal Switching gear" the standard, has high reliable, exempts the maintenance, the occupying a land area of few characteristics; The main technical parameter has achieved the international advanced level.

XGN49-40.5[DXG-40.5]户内气体绝缘金属封闭开关设备是我公司引进中国电力联合会龙源电力研究所技术研制、开发、生产的高科技产品，其技术性能满足GB/T11022《高压开关设备和控制设备的共同技术要求》和GB3906《3～35kV交流金属封闭开关设备》标准，具有高可靠、免维护、占地少的特点；主要技术参数已达到国际先进水平。

Designing space mechanism run into question at first is that correct to confirm space degree of freedom of organization, but calculating many degrees of freedom, seal more ring, harmony wave gear wheel organization, space degree of freedom of organization of mixing with traditional degree of freedom must be very tedious; Calculating general form seal ring low packs of space degree of freedom of organization can be limited greatly too.

设计空间机构时，首先遇到的问题是要正确确定空间机构的自由度，然而，用传统空间机构自由度公式去计算多自由度、多封闭环、谐波齿轮机构、混合型空间机构的自由度时，必须进行变换；计算一般单封闭环低副空间机构自由度时，也会受到很大限制。

The model of the ductile iron solidification is set up according to the solidification property and influence factor.

针对球墨铸铁的凝固特点和影响球铁件收缩缺陷的因素，提出了封闭孤立收缩膨胀叠加法预测球铁缺陷，在CASTsoft凝固模拟软件基础上，分别用铸钢模块和采用封闭孤立收缩膨胀叠加法的球铁模块预测典型铸件缺陷。

It involves the use of rooms with specially designed air handling, the existence of airlocks and/or sterilisers for the exit of materials and secure operating procedures.

二级封闭：防止生物剂进入外部环境或其他工作区的封闭系统，其涉及采用特殊空气处理的房间，离开该区域物料的气闸和/或灭菌柜以及安全操作规程。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。