原文也就是说活性炭过滤器向着良好的方向发展是可能的,未来还有很多值得我们期待的地方。
los angeles times - los angeles, calif
author: gary abrams
date: jul ,
start page: k
section: real estate; real estate desk
text word count:
abstract (document summary)
public safety officials suggest that gate valves
homeowners contact the gas co to arrange a test of their gas main valve or test the valve themselves by turning it with a wrench aboutdegrees (gas flow will not be interrupted and pilots will not need to be relit by turning valve only this far)
even if your manual shut-off works perfectly, a quake can strike when no one is home to shut off the gas or access to the valve may be obstructed by debris butterfly valves
because of this, many communities require the installation of an "earthquake-activated automatic gas shut-off valve"
only a few approved valves provide a means of manual shut-off others can be manually shut off by holding a strong magnet next to the body of the valve (manual ssafety valves
hut-off capability provides another means of gas-flow interruption if the main valve is frozen)
reproduced with permission of the copyright owner further reproduction or distribution is prohibited without permission
原文来自 pqasbpqarchiverlatimesaccess?dids=:&fmt=abs&fmts=abs:ft&type=current&date=jul+%c+&author=gary+abrams&pub=los+angeles+times&desc=do-it-yourself%b+make+sure+gas+shut-off+valve+isn%t+frozen+shut&pqatl=google
do-it-yourself; make sure gas shut-off valve isn't frozen shut;是由 上海埃非凯阀门有限公司提供的阀门新闻，中文译文仅供参考(上海埃非凯阀门有限公司还生产
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以下是参考译文
译文
洛杉矶时报 - 洛杉矶，加州
作者加里稳坐
日期年月日
初始页k
科房地产，房地产服务台
文本字数
（文件）
公众安全官员建议房主联系，煤气公司安排其天然气主要阀门试验或测试，只用度扳手它（气体流量阀本身不会被中断，飞行员将不需要通过relit转阀只有这么远）。
即使您关闭手工作品完美，一地震，既能当没有一个是家庭对切断气体或进入阀门可能碎片受阻。正因为如此，许多社区需要的“地震安装激活自动气体切断阀。”
只有少数通过阀提供了手动关闭的手段了。其他人可以手动关闭举办一个强大的磁铁旁阀体（手动关闭的能力提供了另一种手段的气体流中断，如果主阀被冻结）。
转载与著作权人许可。进一步复制或发行未经允许不得。