spontaneous recovery 中文意思是什麼

spontaneous recovery 解釋
自發恢復
  • spontaneous : adj. 1. 自發的，一時沖動的。2. 天然發生的（電等）；自生的，天然產生的（草木等），不依賴人工的。3. 本能的，自動的。4. （文體）自然流暢的。adv. -ly ,-ness n.
  • recovery : n. 1. 重獲；復得；恢復，收回，回收。2. 還原，復原；痊癒；蘇生；矯正。3. 回縮。4. 填地。5. 【法律】勝訴。
  1. Took sha - zhuyu and east shore of qing - hai lake as the examples and based on the mass of field survey and soil analyse, took comparative method, we carried through the researches on the causes of the desertification, the origin of sandy desertificational land substance, the development diversification and difference of soil characteristic in process of manual and spontaneous vegetation recovery in high frigid regions and make out the taxonomy of desertificational land in high frigid region of china. the result obtained are summarized as follows : 1. the development of the desertificational land in high frigid regions is caused by the manual and spontaneous factors

    論文首次對高寒地區的砂質荒漠化土壤進行系統研究，以沙珠玉和青海湖東岸為例，通過野外考察和土壤樣品室內化驗，採用對比分析的研究方法，對中國高寒地區荒漠化的成因和研究區砂質荒漠化土地的形成演變，土壤發生特性、人工植被恢復和自然植被恢復過程中土壤的發育差異和性質變化進行系統研究，並用系統分類體系對研究區土壤進行類型劃分，得到主要結論如下： 1 、高寒地區荒漠化的發生發展是在自然因素和人為因素共同作用下進行的，沙珠玉地區風沙土是就地產生的，青海湖東岸地區風沙土主要是由風從湖的西岸搬運而來的，兩地區砂質荒漠化發展仍然十分嚴重。
  2. 4. in the process of spontaneous vegetation recovery of blown sand soil, coarse sands ( l - 0. 25mm ) content gradually lower, middle sands ( 0. 25 - 0. 05mm ) and fine sands ( 0. 05 - 0. 02mm ), silt, clay content gradually higher in mechanical composition

    4 、在自然植被恢復過程中，風沙土機械組成中砂粒含量變化表現為粗砂含量的降低，中砂和細砂含量的升高，砂粒整體含量降低。
  3. The disease is usually mild with spontaneous recovery. dehydration and shock may occur in severe cases

    病情通常溫和，一般會自然痊癒，但部份較嚴重的個案可能會出現脫水及休克的情況。
  4. Compared manual with spontaneous vegetation recovery process of blown sands, the pace is quicker, the degree is higher, the transformation range is larger of every physical and chemical characters

    與風沙土人工植被恢復相比較自然植被恢復，土壤發育速度慢、強度低、程度弱，土壤質量較差，肥力水平很低。
  5. The development pace is larger in surface layer than underlayer in the process of spontaneous vegetation recovery. but the transformation of physical and chemical characters is instable because of always interrupt or repeat of soil development process

    土壤同樣是從表層開始發育，但是發育過程經常被迫中斷，或出現發育、退化的反復性，導致理化性質在土體中的變化不穩定。
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