整个系统都要有介质加热和注入防冻液的途径，以避免形成类似冰的甲烷水合物（译者注，即可燃冰）。
Throughout the system there would be ways of warming things up and injecting antifreeze to stave off the formation of icelike methane hydrates.
一种无色糖浆状液态二烃基醇，HOCH2CH 2oh，用作冷却和加热系统中的防冻剂。
A colorless, syrupy alcohol, HOCH2CH 2oh, used as an antifreeze in cooling and heating systems.
一种太阳能热水器系统装置，它由真空太阳能吸收器、电辅助加热装置、节水防冻装置构成。
A solar water heater system is composed of vacuum solar energy absorber, electrically aided heater and water-saving antifreezing unit.
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