The soil which was moderate pH has the advantage of cumulating calorific value. 中性和近中性土壤有利于苜蓿热值积累和光能累积。
The calorific value of Medicago populations from northern Xingjiang and cultivars were measured using Parr measurement. 摘要用氧弹式自动测热仪测定苜蓿不同种群植物体的热值。
This coal has a high calorific value. 这种煤有很高的发热量。
Inhomogeneous thermal power density and temperature distribution of inside-pumped solid-state tube lasers have been derived in this paper. 本文导出了内泵浦方式下管状固体激光器的非均匀发热量和温度分布。
