... ，它反映煤炭的应用效果，但外界因素影响较大，如水分等，因此Qnet,ar 不能反映煤的真实品质。国际贸易通用发热量标准为空气干燥基高位发热量（ Qnet,ar) ，它能较为正确的反映煤的真实品质，不受水分等外界因素影响。
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低位发热量 Lower heating value ; Qnet ; net calorific value ; QYLW
弹筒发热量 heating quantity of bomb cylinder ; bomb calorific value ; heating quantity of bomb cyli ; calorific value of determination in oxygen bomb
高位发热量 Qgr ; gross calorific value ; high heating value ; Qgrvad
低发热量 Low Heat ; lowercalorificvalu ; lower calorific value
发热量、热值 Caloric value
额定发热量 Rated head ; Rated power ; Fixed calorific capacity ; Model
燃料发热量 calorific capacity of fuel ; fuel calorific power ; [能源] heat output of fuel
蒸发热量计 evaporative heat meter
煤的低位发热量 low calorific capacity of coal ; [矿业] low heat output of coal
The char from Zhaotong lignite have the high calorific value, about twice than the raw coal, and the ash of char is high (54%-57%), so it usually used as fuel.
昭通褐煤热解半焦发热量比褐煤的发热量约高一倍,但由于灰分含量(54%-57%),应用受到限制,一般只能做燃料。
参考来源 - 云南褐煤固体热载体法热解及其半焦燃烧特性的研究So,it is difficult to exactly calculate the quantity of heat of coal.
因此很难准确地计算出即时的燃料发热量。
参考来源 - 中小型燃煤锅炉仿人智能控制系统的实现The regression equ ation also can be used to estimate the heat productivity and check the accuracy of the measured results.
可利用回归方程估算发热量和检查测定结果的准确性。
参考来源 - 期刊学术社区·2,447,543篇论文数据，部分数据来源于NoteExpress
动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。
The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.
企鹅通过抖动羽毛和喘气，还有翅膀内侧、腿和脚蹼等部位散发热量。
They shed heat through the undersides of their flippers and through their legs and feet, as well as by fluffing their feathers and panting.
不仅是含糖饮料，不利于口腔卫生，而且他们发热量，并提供很少的营养素。
Not only are sugary drinks detrimental for oral health, they're calorific and provide little in the way of nutrients.
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