If above fault has been ruled out, air conditioner still cooling, heating effect is poor, then can judge compressor failure or low efficiency.
若以上故障已排除，空调器仍然制冷、制热效果差，则可判断压缩机失效或效率降低。
Points out that direct electricity heating is of low energy efficiency, but it can be a supplement to other heating modes or for spot heating in buildings.
指出电直接供热是能源的低效应用，但可以作为其他供热方式的补充或用于建筑局部供热。
Low efficiency and high costs generally exist in heating system, being operated in big and moderate cities, which relates to design, operation and management.
我国大、中城市现已运行的供热系统，普遍存在着热效率低、供热成本高的缺点。其原因有设计方面的，也有运行管理方面的。
The furnace is horizontal, which is characterized by fast starting, low heat inertia, good isolation and high heating efficiency.
还原炉是卧式布置。炉子加热启动快，热惯性小，保温效果好，热效率高。
The quick water heating tank with high heating efficiency, low use cost and saving of electricity is convenient for popularization and application.
这种速热水箱，加热效率高、省电、使用成本低、便于推广应用。
But there are some shortage of ordinary single-stage heat pump in low-temperature environment, such as high compression ratio, devoid heating power and low efficiency.
但普通单级空气源热泵热水器在低温环境下运行中存在压缩比过大、制热量不足和制热效率太低等问题。
The direct current type heating is a brand-new heating mode and has the advantages of low cost, high heat efficiency, low space irradiation and safe heating.
该直流式加热是一种全新的加热方式，具有成本低、热效率高、空间辐射小、且加热安全的优点。
Low heating:As for the low eddy current losses and high efficiency make the low energy consumption, so heating is improved while motors run in high frequency.
产品发热较小一一一在高频运转条件下，因涡流损耗低工作效能较高，能耗小，发热状况得到明显改善；
This machine is made of stainless steel. It has stable performance, full closed leather belt transmission. with remote infrared tube heating, it has low consumption, high efficiency, safe and clean.
本机采用不锈钢制造，机械性能稳定，采用全封闭皮带传动，远红外管发热，功率低、效率高，安全、卫生。
The heating body has advantages of low cost, quick heat, warming-up, high heat efficiency and high mechanical strength etc.
该加热体具有成本低、加热、升温速度快、热效率高和机械强度高等诸多优点。
The invention can adjust horsepower of electric iron and has the advantages of high heating efficiency, low hull temperature and long durability.
藉由上述结构主要解决现有电烙铁功率无法调节的技术问 题，具有热效率高、烙铁头子不会烧死、外壳温度低、寿命特长等优 点。
The invention adopts the technology combining low-temperature heating and ultrasonic processing, and has the advantages of good sterilization effect, high efficiency and the like.
本发明采用低温加热与超声结合技术，具有杀菌效果好、效率高等优点。
Chinese northern cities commonly adopt the central heating in winter. However, since the heating systems are not equipped with automatic control devices, the efficiency of heating systems is low.
在冬季，北方普遍采取集中供暖的方式，但由于缺少自动控制系统，供热效率较低。
As the glass heating container body heats and is directly contacted with water, high thermal efficiency, low power consumption and quick heating speed are available.
由于玻璃加热容器本体发热，直接与水接触，热效率高，耗电省，加热速度快。
The low temperature hot water radiant floor heating system has been used widely in residence and office buildings for its energy-saving, environmental friendly, cozy and high-efficiency advantages.
低温热水地板辐射采暖系统已被广泛应用于住宅、办公等建筑，而在医院中应用较少。
By making use of properties of low voltage heat emission, rapid heat emission and high heat efficiency of the heat emitting soft coat, the clothes is capable of heating.
本发明利用发热软膜能低电压发热、发热迅速、热效率高等特性，使衣服能自身发热。
High Efficiency (99.8%), High Fixed Voltage, Non-Interference, Non-Heating, Low-Consumption, Reliable Output Energy.
高效率(99.8%)，高稳压，无干扰，不发热，耗电少，输出能量更稳定。
High Efficiency (99.8%), High Fixed Voltage, Non-Interference, Non-Heating, Low-Consumption, Reliable Output Energy.
高效率(99.8%)，高稳压，无干扰，不发热，耗电少，输出能量更稳定。
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