opening protection

This paper analyzes different conjunction modes among relay equipment,protection interface and carrier equipment in HF protection channel,analyzes the characteristics,and proposes a renovation scheme about dual carrier HF longitudinal protection channel.

为了满足纵联保护系统对保护传输通道的高要求,文章分析了载波电力线高频保护通道中设备、保护接口、载波设备相互之间的不同连接方式,并总结其特点,对双载波的电力线高频保护通道改造方案提出了建议。

Stress intensity analyzing of the submarine periscope rectangle plain protecting window;

潜艇潜望镜矩形平面保护窗口强度分析

It seemed to him that thus he better guarded the unfinished opening.

他觉得这样似乎可以把那未挖成的洞口保护得更严一点。

protected opening

有保护的墙身洞口耐火极限要求的门

Russell Cave National Monument

拉塞尔洞窟国家保护区

Jackson Hole National Monument

杰克逊洞国家保护区

Jewel Cave National Monument

朱厄尔洞穴国家保护区

This paper describes the technical measures adopted for soil consol idation and portal soil consolidation in working shaft and receiving shaft of ja cking pipe in order to protect the pipeline.

介绍为保护管线而采取的顶管工作井、接收井的土体加固以及洞口加固等技术措施。

Round the cave stood groups of the men who had escorted us.

洞口的四周站着一群男人守护我们。

Oregon Caves National Monument

俄勒冈山洞国家自然保护区

The Study of Anti-Expose and Prevention of the Security Flaws for Inner Network;

防内网漏洞暴露的保护系统研究开发

Evaluation and Expectation of Local Legislation on Dongting Lake Wetland Protection;

洞庭湖湿地保护地方立法评价与展望

"Polder Leveling,Wetland Restoration"Project and Dongting Lake Wetland Ecosystem Protection;

“平退”工程与洞庭湖区湿地生态保护

Research and the Protection of Wubu Ancient Cave Settlement Pattern

吴堡窑洞古城聚落形态的研究与保护

Ecological Status of Taoyuandong National Nature Reserve

桃源洞国家级自然保护区的生态状况

Treatment Program for Deformation and Landslides at Left Entrance of Zhenbao Tunnel

镇保隧道左幅进口洞口段变形及坍方处治方案

password protected load module file

口令保护装入模块程序

Pearl oral liquid is the god who protects youth.

珍珠口服药，青春保护神。

unprotected vertical opening

不加保护的垂直开口

The ant guards grabbed my arms and dragged me towards the hole.

蚂蚁护卫们抓住我的胳膊，拖着我朝洞口走去。