发热量

1
Qnet
... ，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。

短语

1
低位发热量
Lower heating value ; Qnet ; net calorific value ; QYLW
2
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
3
高位发热量
Qgr ; gross calorific value ; high heating value ; Qgrvad

1
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.
2
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.
3
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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