The foaming agents for new porous material production for wastewater treatment were screened by comparative and cross-field experiments.
本文用对比试验和正交试验的方法，对废水处理新型填料的发泡剂进行了筛选。
The kinetic cross-field streaming electromagnetic instability for transmitted ions within the Earth's bow shock front is investigated in this paper.
本文研究了地球弓激波前内透射离子动力学横场流不稳定性。
Many are self-steering, use GPS to cross a field, and can even "talk" to their implements—a plough or sprayer, for example.
很多都是自动驾驶的，使用 GPS 穿越田地，甚至可以和他们的工具“交谈”——比如，与犁或喷雾器。
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