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- To remove nitrogen or nitrogen groups from(a compound). 使脱硝,使脱氮(从化合物中)去掉氮或硝酸盐
- Equipping with air-control switch of air-copressor or nitrogen machine. 配带冲气开关,每袋包装可从空压机(用户自备)或氮气机冲气。
- Two other low-input ways to improve the soil involve using manure or nitrogen and phosphorus as fertilizer. 还有两种低成本的方法可以改善土壤,包括施用粪肥或者氮肥、磷肥。
- Two other lower-input ways to improve the soil involve using manure or nitrogen or phosphorus as fertilizer. 另外两种提高土壤质量的低投入方法是使用肥料,或者是将氮以及磷作为肥料。
- Nitrogen doped fluorinated diamond-like carbon(FN-DLC)thin films is deposited using radio frequency plasma enhanced chemical vapor deposition under different radio-frequency power with CF_4,CH_4 and N_2 as source gases. 以CF4;CH4和N2为源气体;采用射频等离子体增强化学气相沉积法;在不同射频功率下制备了含氮氟化类金刚石薄膜样品.
- Nitrogen narcosis (or nitrogen euphoria or raptures of the deep):Effects of breathing nitrogen under increased pressure. 氮麻醉(亦称氮欣快或深水销魂):在压力增高的条件下吸入氮气所产生的生理效应。
- Manure or nitrogen and phosphorus as fertilizer. And the fifth way that the study found may improve sorghum production is to reduce crop tillage. 另外两种低投入的改良土壤方法是用粪肥、氮和磷作为肥料,研究发现的第五种方法是减少作物耕种可以改善高粱的产量。
- Nitrogen narcosis (or nitrogen euphoria or raptures of the deep): Effects of breathing nitrogen under increased pressure. 氮麻醉(亦称氮欣快或深水销魂):在压力增高的条件下吸入氮气所产生的生理效应。
- An element, such as carbon, hydrogen, oxygen, or nitrogen, required in large proportion for the normal growth and development of a plant. 大量营养素满足植物正常生长和发育而需要的大量元素,如碳、氢、氧或氮等
- For example,a reduction in organic carbon and nutrients,including phosphorus or nitrogen,as may occur in intensively farmed areas,de creases the fertility of soils. 例如,过度耕种的土地可能发生有机碳和营养的减少,包括磷或氮,降低了土壤的肥力,在农作物密集的地区往往是这样。
- nano nitrogen doped silicon carbide 纳米掺杂氮碳化硅
- A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g.,oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond. 一种化学键:由两个负电原子(如氧气或氮)及其间的氢原子组成,其中一边是共价键,另一边是离子键。
- Cover crop: a crop, such as winter rye or clover, planted between periods of regular crop production to prevent soil erosion and provide humus or nitrogen. 间作在常规农作物生长间期内种植的农作物,比如冬麦或三叶草,以预防土壤侵蚀并能提供腐殖质和氮。
- For example, a reduction in organic carbon and nutrients, including phosphorus or nitrogen, as may occur in intensively farmed areas, de creases the fertility of soils. 例如,过度耕种的土地可能发生有机碳和营养的减少,包括磷或氮,降低了土壤的肥力,在农作物密集的地区往往是这样。
- FN-DLC (nitrogen doped fluorinated diamond-like carbon) 掺氮氟化类金刚石
- Nitrogen doping allowed the material to absorb a broad range of light energy, including energy from the visible region of the electromagnetic spectrum. 氮掺杂可以让这种材料吸收广泛的光能,包括电磁波谱中的可见光区域。
- The effect of yield and grain protein content with soil water content and nitrogen (or nitrogen and P2O5) was described by isopleth. 用极差变换将产量和蛋白质含量理论值标准化,其标准值曲线的交点即为二者的最佳结合点。
- Studies on Electronic Structures and Spectra of Fullerenes Doped with Nitrogen and Boron. 氮杂及硼杂碳笼的电子结构和光谱研究。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- Some aspects of the transition are analogous to III-V semiconductors with dilute nitrogen doping, which suggests that the origin could be related to an isoelectronic defect. 该跃迁的某些性质类似于含少量氮搀杂的III-V族半导体材料,因此它有可能同样起源于等电子缺陷。