我国是一次能源以煤为主的国家。
煤炭是我国最主要的一次能源。
煤炭是中国主要的一次能源。
天然气是清洁的一次能源。
太阳能既是一次能源，又是可再生能源。
人类第一次能源领域有良好的记录是心脏的领域。
The first human energy field to be well documented was the field of the heart.
同时由于一次能源的使用使我国环境遭到了很大的破坏。
Meanwhile, the use of primary energy sources destroys badly our country's environment.
商品化可再生能源量在一次能源结构中的比例逐步提高。
The proportion of commercial renewable energy to the structure of primary energy keeps rising.
单纯提高冶炼强度有可能导致一次能源浪费，使炉衬过早损坏。
Simple raise of smelting intensity may lead to energy wasting and fast lining damage.
基于气体燃料(一般是氢气)氧化产生电流的一种一次能源发生设备。
A primary power-generating device based on the production of an electric current by the oxidation of a gaseous fuel, usually hydrogen.
煤炭与石油是当今世界直到20世纪中叶才大量使用的传统一次能源。
Coal and oil have been the primary traditional energy that began to be used extensively in the world since the mid 20th century.
冷热电联产(CCHP)技术可提高一次能源的利用率，降低环境污染。
The technology of combined cold, heat and power (CCHP) could improve primary energy utilization efficiency, and reduce environmental pollution.
天然气作为一种清洁能源，在世界一次能源消费构成中的比例不断增长。
Natural gas, as a clean primary energy, has been becoming more and more important in the national economy.
因此在部分负荷较低的情况下，燃气机单级离心泵的一次能源利用率较低。
Therefore, in the lower part load, the gas engine heat pump at a lower energy efficiency.
OECD去年消耗的一次能源比10年前更少，尽管其GDP从那时起已经增长了18%。
The OECD consumed less primary energy last year than 10 years ago, although GDP since then has risen by 18%.
煤炭重要的一次能源，煤燃烧引发的技术和环境问题是全世界共同面临的难题。
Coal is important primary energy, but now the world is commonly facing a difficult problem of technology and environment which results from coal combustion.
石油主要被用来作为燃油和汽油，燃料油和汽油组成世界上最重要的一次能源之一。
Oil is primarily used as fuel oil and gasoline, which make up one of the world's most important primary energy.
随着传统一次能源更多使用和温室气体大量排放，低碳经济在全球范围内引起重视。
With more traditional primary energy use and larger greenhouse gas emissions, it is high time that worldwide placed great emphasis on low-carbon economy.
天然气是一种优质的环保型能源和燃料，它在世界一次能源结构中的比例逐年上升。
Natural gas is a high-quality and environment-friendly energy source and fuel, and its percent in primary energy constituent in the world is more and more increasingly.
中国煤炭产量和消费量均居世界首位，占国内一次能源生产和消费总量的85%左右。
Our country coal resources are very abundance. Coal output and consumption occupy first place in the world, which occupying about 85% in the internal primary energy produces and consumption.
本文对不同冷源的一次能源利用效率进行了比较，并且比较了它们对环境影响的情况。
Primary energy efficiency and impact on environment of different cold sources have been compared in this article.
烟气余热回收系统不仅降低了直燃机排烟温度，还提高了夏季直燃机的一次能源利用率。
The recovery system of residual heat from flue gas can reduce the flue gas temperature of direct-fired machine and increase the primary energy utilization rate of direct-fired machine in summer.
负荷管理是重要的需方资源，开发此资源可在更大程度上合理使用一次能源和电力资源。
The development of the resource can realize a rational use of primary energy resource and power resources to a greater extent.
还表明应以整个供热系统的供热系数和一次能源利用系数来衡量各热泵系统的能量利用性。
The results also make it clear that heating coefficient and primary energy efficiency of whole heating system should be adopted to evaluate the energy utilization of each heat pump system.
坑口电站可以直接将一次能源转化为二次能源，减少输煤损失和环境污染，具有很大的优势。
Mine mouth power plant can directly convert primary energy source into secondary energy, reducing coal loss in the transportation and environmental pollution, so it has tremendous advantages.
指出煤炭作为我国主要的一次能源，其进出口问题关系到我国能源安全、环境污染和社会稳定。
The paper pointed out that coal, as a major primary energy, its import and export have bearings on energy safety, environmental pollution and social stability.
结果表明：燃气机热泵在供热时的一次能源利用率为1.76，(火用)效率为29.12%。
The results show, when heating, the primary energy ratio of GEHP is 1.76 and exergy efficiency is 29.12%.
我国一次能源以煤为主，从而导致了严重的煤烟型大气污染，其中以SO_2和NO_x为主。
Actually the primary energy sources is coal-based in China result in the serious coal smoke pollution which mainly to SO_2 and NO_X.
我国一次能源以煤为主，从而导致了严重的煤烟型大气污染，其中以SO_2和NO_x为主。
Actually the primary energy sources is coal-based in China result in the serious coal smoke pollution which mainly to SO_2 and NO_X.
应用推荐