The field experiment was conducted on the cultivated soil, sand and immature soil by using field wind tunnel.
使用野外风洞作为风蚀研究的试验手段,通过农田土壤、沙及生土的风洞试验研究发现,农田土壤的风蚀量随风速呈指数函数变化,沙及生土的风蚀量随风速呈幂函数变化。
Effect of fertilizer supplying method on yield formation and nitrogen (N) absorption were studied with the Japonica cultivar Zhendao 88 in immature soil in Huaibei.
在淮北生土地区 ,以镇稻 88为试验材料 ,设计不同氮、磷肥处理 ,研究其对该区水稻产量形成、群体动态及氮素吸收的影响。
An experiment was conducted in the seashore region of northern Jiangsu to probe the causality of fertility enhancement of the immature soil formed after land leveling with application of some organic manures such as pig manure,cake manure and straws.
三季种植后 ,土壤有机质净增量与有机质投入量 ,总投氮与土壤全氮、碱解氮 ,总投磷量与土壤速效磷 ,总投钾量与速效钾呈显著正相关 ,肥料投入对生土土壤肥力演变起决定性作用。
Triggering response of winter wheat to nitrogen,phosphorus,and potassium nutrition in raw soil;
生土条件下冬小麦对氮、磷、钾的原始响应
The PS-(F+C) slurry is prepared by mixing PS(Potassium Silicate in optimum modulus) as binding ingredient,fly ash(F) generated from thermal power plant and pulverized native raw soil(C) at the ancient city of Jiaohe as filling substance,and sodium fluosilicate as treatment agent,its initial setting time is obtained and the shrinkage behavior of its concretion is monitored.
以PS为主剂,粉煤灰和交河故城原生土为填充材料,氟硅酸钠为固化剂制得PS-(F+C)浆液,测定浆液的初凝速度,并观测结石体的收缩变形性。
A sack to haul the dirt,another dollar.
运土的袋子,又要一美元.
Saturn launch vehicle
“土星”号运载火箭
bauxite carrier
铝矾土运输船铁矾土运输船
Phosphate Charter Party
磷灰土运输租船合同
automatic dumping type concrete truck
自卸式混凝土装运车
concrete mixer on truck
运货汽车混凝土搅拌机
Land Registry Trading Fund
土地注册处营运基金
An Experimental Study on Soil Detachment and Transport Processes at Loessial Hillslope;
黄土坡面土壤侵蚀—搬运过程试验研究
Application of Erdas for Calculating Earthwork in Land Consolidation Project;
ERDAS在土地整理土方量计算中的运用
A movement for equitable distribution of land and for agrarian reform.
平均地权运动，土地改革为平均分配土地和土地改革而进行的运动
To loosen, turn over, or remove earth or other material.
挖掘，松土疏松、挖、翻或运走泥土或其它的材料
Study on Soil Water Movement and Its Cycling on a Hillslope of the Loess Plateau;
黄土区坡地土壤水分运动与转化试验研究
The Impact of the Soil Water Vertical Movement on the Soil Temperature;
土壤水分的垂直运动对土壤温度的影响
A Fractal Study on Soil Structure and Soil Water Movement Model;
土壤结构的分形特征及土壤水分运动模型研究
Application of Arcview for calculating earthwork in land consolidation project;
Arcview在土地整理项目土方量计算中的运用
A Macro-assessment of State Owned Land Assets Using the Result of Urban Land Grading;
运用城市土地分等成果进行国有土地资产评估
Dissipation and leaching of oxytetracycline and tylosin in typical agricultural fields
泰乐菌素和土霉素在农业土壤中的消解和运移
Travel or traffic by vessels, especially commercial shipping.
海上交通海土交通或航运业，尤其指商业运输