mulch paper 中文意思是什麼
mulch paper
解釋
護蓋紙；園圃紙-
The testing result shows that there is a difference actual seed dropping angle and the one acquired by calculation, therefore, a formula for the calculation of seed dropping angle even closely suited to production practice has been driven out and a theoretical basis for the application of 2bqm - 2 model plastic film mulch pneumatic precision planter in practical production is advanced in this paper
通過試驗，找出種子的落種位置規律。通過試驗結果分析，找出種子的實際的落種角度和計算的落種角度之間的差別，推導出更適合實際生產中所需要的落種角度，為2bqm - 2型氣吸式精量鋪膜播種機在實際生產中的應用提供了一定的理論基礎。 -
In order to overcome the disadvantage of 2bps - 2 plastic film mulch seeder with watering apparatus that the operation speed is limited and the moisture evaporation loss is great, according to the theoretic analysis of water movement in soil, this paper offers another watering project - hidden watering under film, designs three different types of watering devices, meanwhile conducts test research with different watering devices in different position the change of the soil moisture content
本課題針對2bps - 2型坐水鋪膜播種機坐水后，土壤水分蒸發損失大和機組作業速度低的突出問題，通過對水在土壤中運動的理論分析，提出了在行間膜下的暗道式施水方案，圍繞此方案設計了三種坐水部件，並就不同坐水部件在不同施水位置施水后，種子帶土壤含水量的變化進行了試驗研究。 -
According to the theoretical and practic al simulation of isothermal and non - isot hermal movement of water and salt ， and bo undary with mulch ， this paper introduces the status of studying advances in simul ation and coupled modeling on moisture m ovement ， heat transfer ， and salt transportin soils ， especially the soils with stra w mulch. based on summarizing above ， the f eatures of concerned models and desirable development are discussed briefly
分別從等溫和非等溫水鹽動態模擬以及覆蓋邊界層三個方面，以秸稈覆蓋條件下土壤水、熱、鹽耦合運動規律模擬研究為重點，介紹了50年代以來土壤水熱鹽數學模擬的研究成果，並簡要論述了有關模型的特點及今後的發展方向。
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