氮化物滲氮 的英文怎麼說
中文拼音 [dànhuàwùshèndàn]
氮化物滲氮
英文
nitride-
Strengthening mechanism of ion nitriding is different from surface quenching and cementation, which makes surface strengthen by quenching to get martensite. ionic nitriding is the way to make materials strengthe n, which result from the steady compound formed on the surface of the metal. there is no need for quenching after treatment
離子滲氮的強化機理不同於表面淬火，滲碳等表面熱處理方法，這些方法必須進行淬火得到馬氏體使表面強化，而離子滲氮是在金屬表面形成穩定化合物而使材料強化，處理后不須淬火。However, the movement and transformation of n in soil under fertigation remains unclear. the methods of simulation experiment and culture experiment were used to study the movement and transformation of n in soil under fertigation by drip irrigation. the main experimental results were shown as folio wings : ( 1 ) the water infiltration under drop irrigation is a point infiltration ; and the soil moisture in vertical and horizontal directions was increased with the irrigation time, and the movement rate were decreased with the irrigation time
本研究採用室內模擬試驗和生物培養試驗相結合的方法，研究了在滴灌施肥條件下，化學氮肥施入土壤后的遷移、轉化規律以及對作物生長的效應，獲得了以下主要結論： （ 1 ）滴灌條件下水分以點源入滲土壤，水平和垂向的濕潤鋒均隨入滲時間的增加而逐漸變大，在入滲開始階段濕潤鋒的推進速率較大，隨入滲時間的延長，濕潤鋒的推進速率逐漸變慢。
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