查询词典 topsoil

Utilizing the terra-mechanics equation and parameters of the lunar topsoil (the following is abbreviated as lunar-soil), the drawbar clevis pulling force of wheel was predicted by calculation.

应用地面力学方程和月球表层土壤参数计算预测了车轮的挂钩牵引力。

Results showed that the topsoil structure of the CK treatment was dense with little porosity developed, and the soil microstructure was sandy granular fabric - granular fabric. In these treatments using chemical fertilizers only, the soil particles did not form soil structure with little porosity, and the soil microstructures in the N, NP or NPK treatment were observed as prophyropectic fabric-fine sand agglomerplasmic fabric, much better than the CK treatment. In those treatments receiving farm manure alone or farm manure plus chemical fertilizers, the quantity of groundmass increased obviously. The soil had a loosen structure, higher porosity, enriched animal and plant residua, iron-manganese nodules and humus, and more micro-aggregates developed. The soil microstructure of the MNPK treatment was pectized-compacted takyric fabric-intertextic fabric, the best microstructure observed among all the treatments.

结果表明：长期不施肥料的CK处理，土壤耕层结构致密，很少有孔隙发育，土壤微结构为结构较差的碎屑聚积状-沙粒聚积状；长期单施化学肥料，土壤颗粒未形成结构体，少孔隙，土壤微结构主要为斑晶胶凝状－细沙粒聚积状结构，土壤结构比CK处理优；长期施用有机肥或有机无机肥料配施的处理，土壤粗颗粒数量显著增加，结构疏松，孔隙量大，动、植物残体丰富，有铁锰结核和腐殖质的形成和微团聚体的发育，土壤微结构类型以MNPK处理最好，为胶凝紧实状－多孔状结构。

These things in the topsoil that were once alive are called humus.

表土中这种曾是活体的东西叫做"腐殖质"。

In contrast, the imperforate film mulching method is a way to cover the topsoil with the film fixed by compacted soil on its ends when the crop is planted beside the film.

新膜法使用的地膜是旧地膜覆盖种植法的一半，特点是节能减排。

With increasing altitude, the distribution characteristics of the topsoil (0-20cm) labile organic carbon and organic carbon lability were decrease→increase within the altitude range of

对贡嘎南山-拉轨岗日山南坡高寒草原生态系统表层（0~20cm）土壤活性有机碳分布特征研究表明：表层（0~20 cm）土壤活性有机碳平均为(2.4986±0.7864) g/kg，占表层土壤有机碳的(12.7926±21.00)%。

However, the key environmental factors for the topsoil (0-20cm) organic carbon lability were vegetation coverage, 20-30cm belowground biomass, 0-10cm,10-20cm and 20-30cm underground soil moisture, soil organic matter, soil labile Potassium and soil total Nitrogen content.

影响表层土壤活性有机碳含量最关键的环境因子是地上生物量、0~10cm地下生物量、30~40cm地下生物量、20~30cm土壤含水量、0~20cm土壤容重、20~40cm土壤容重和土壤全N量；影响表层土壤有机碳活度最关键的环境因子则是植被盖度、20~30cm地下生物量、0~10cm土壤含水量、10~20cm土壤含水量、20~30cm土壤含水量、土壤有机质、土壤速效K和土壤全N量。

The highway out of Taiyuan, capital of China's landlocked Shanxi province, winds through miles of ugly, denuded hills, a man-made moonscape stripped bare by loggers and then washed clear of fertile topsoil by waves of erosion.

亚洲的农场和厨房 Asia's farm and kitchen 中国内陆省份山西的省会太原城外，公路蜿蜒盘旋於荒山秃岭之间。乱砍滥伐造成水土流失，这些山光秃秃的，像月球表面一样，岩石裸露，十分难看。

A: Any basic potting mix or topsoil mixed with peat moss will work fine.

答：任何基本花盆混合或表土混合泥炭将罚款。

The machines used to create a smooth piste compact the ground and remove the topsoil, leaving scars down mountainsides that are clearly visible when the snow melts, as are the pylons used by the ski lifts.

那些用来光滑雪道的机器移走了表层土，密实了地面；然而，冰消雪融，山坡从上到下却留下一道道清晰入眼的伤疤，这些伤疤和上山索道用的架线塔一样明显易见。

It shows that understory plantscan promote to richen nutritional elements in topsoil.

这说明林下植物具有促进营养元素在地表富集的作用。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。