1.
Study on the Relationship between Soil Microbes and Soil Fertility in Paddy Fields of Long-term No-tillage and Ridge Culture;
自然免耕稻田的土壤微生物与肥力关系研究
2.
natural resources in the form or arable land.
耕地形式存在的自然资源。
3.
Effect of drought process on natural production function of cultivated land
干旱过程对耕地自然生产功能的影响
4.
in a natural state; not tamed or domesticated or cultivated.
自然状态下；未被驯化的、没有耕种或未驯养的。
5.
Thus their life is harder than that of the semi-owner peasants, but they are better off than the other category of poor peasants.
故其生活苦于半自耕农，然较另一部分贫农为优。
6.
Farming on this bad land is a struggle against nature.
在这块贫瘠的土地上耕种是与大自然作斗争。
7.
Leaving some fields fallow provided a natural check on insect populations.
让一些土地休耕是自然控制昆虫数量的办法。
8.
Dynamics of Soil Nutrients during Natural Recovery Process of Abandoned Farmland in Huailai Basin,Hebei Province.
怀来盆地弃耕地自然恢复过程中土壤养分动态
9.
Study on the Vegetation of Ole-fields Naturally Restore in Southern Junggar Basin;
准噶尔盆地南缘弃耕地植被自然恢复的研究
10.
The U.S. Experience With Land Retirement for Natural Resource Conservation;
美国以自然资源保护为宗旨的土地休耕经验
11.
Assessing Natural Quality and Use Quality of Cultivated Land in Northeast China;
东北地区耕地自然质量和利用质量评价
12.
Impact of Grain for Green Project to Nature and Society in North Shaanxi of China;
退耕还林项目对陕北地区自然与社会的影响
13.
Treatment of Rural Domestic Sewage by Land Natural Purification Technology under Cultivation Layer
耕作层下土地自然净化技术处理村镇生活污水
14.
Response of farmland with different natural quality to farm field input
农田投入在不同自然质量耕地上的响应分析
15.
a natural fear of nuclear war; natural immunity; a grandparent's natural affection for a grandchild.
对核战争的自然的恐惧；自然免疫；祖父母对孙子女的自然的疼爱。
16.
The intensification of the immunological response represents the body's natural defense.
增强免疫反应代表身体的自然保卫。
17.
All this is undoubtedly the pedantic view of a bookish person -- a view which must sound ridiculous to all sensible gentlemen.
这自然是书生之见，不免通达的人一笑。
18.
An unmodified attack of measles usually confers lifelong immunity.
自然经过的麻疹，一般产生终身免疫。