PPJ的音标

The surfactant PPJ ( alcohol polyoxyethanol) was mixed with plant nutrients and sprayed onto wheat leaves at different growth stages of the crop to study the effect of the surfactant on nutrient absorption by the plants.

研究了不同浓度的表面活性剂脂肪醇聚氧乙烯醚（PPJ）叶面喷施对小麦叶子不同生长时间对营养物质硼、天冬氨酸和锰离子吸收的影响。

PPJ made catalase more susceptible to the influence of high voltage electrostatic field ( HVEF), reducing the critical electrostatic strength that affects catalase activity and the time span for the occurrence of change in enzyme activity.

研究了脂肪醇聚氧乙烯醚对高压静电场与酶作用的影响，结果表明：脂肪醇聚氧乙烯醚使得过氧化氢酶更容易受到高压静电场的影响，使酶活力产生变化的阀值电场强度变得更低。

The effects of PPJ and SFE on stomata and epicuticular wax and the ethylene production and Mn 2+ absorption of soybean leaves have been studied systematically.

本文系统地研究了烷基聚氧乙烯基醚（PPJ）和蔗糖脂肪酸脂（SFE），对大豆叶片气孔、蜡质层、乙烯释放量和锰离子吸收情况等的影响。