Susceptibility to heat damage is influenced by genetically controlled factors.对热害的敏感性则受遗传所控制的因素的影响.Gardeners classify plants accrdiring to their life - duration and frost susceptibility.园艺学家根据植物的生命长短以及对霜害的敏感性去分类.Limted e...
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.Deuterium is widely used in the study of reaction mechanisms and in spectroscopic studies.氘广泛地应用于反应机理的研究和光谱分析.The substituent i...