调查表明，果树缺铁性生理病害在碱性大的土壤里表现严重，导致果树枝梢枯死，生长不良，果实减产甚至绝收。
The survey shows the fruit tree iron deficiency disease is serious in alkaline soil and it causes bourgeon wither of trees, poor growth and lower or no yield.
研究了大孔型弱碱性阴离子交换树脂d 354分离水中柠檬酸的相平衡和动力学。
The equilibrium and kinetics of citric acid separated by a weakly basic anionic exchange resin D354, were studied.
研究在粉碎活化、碱性激发和硫酸盐复合激发的作用下，大掺量矿渣的活性激发与强度的关系。
Relationship between hydraulic reactivity of slag and strength of cement with low amount of clinker is explored under the activation of fine grinding, alkali and sulfate in combination.
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