... electromagnetic force 电磁力，电磁场强度 electromagnetic gas valve 电磁气阀 electromagnetic gear 电磁传动，电磁联轴节 ...
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electromagnetic effect gas valve 电磁气阀
electromagnetic gas safety valve 电磁式煤气安全阀
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The problem of use safety of the gas is mainly solved by installing a gas leak alarm device, a mechanical arm controlled by an alarm and an electromagnetic valve.
燃气使用安全问题主要靠安装燃气泄漏报警器、报警器控制的机械手、电磁阀来解决。
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