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- For the usage of the spade soil opener in a punch planter the precision metering device with declined scoop-type disc was selected for maize seeds. 为与铲式成穴器的结构特点相适应，选择倾斜圆盘勺式玉米精密排种器作为打穴播种机的排种机构。
- Abstract: Based on the working principle the adjusting range of construction and working p arameters were determined for the design of a spade soil opener for a punch pla nter. 文摘:根据铲式成穴器的成穴机理确定了其结构参数和工作参数的设计变化范围，并按照二次回归试验设计方法进行了成穴器参数对成穴性能影响的试验。
- Abstract: For the usage of the spade soil opener in a punch planter the precision metering device with declined scoop-type disc was selected for maize seeds. 文摘:为与铲式成穴器的结构特点相适应，选择倾斜圆盘勺式玉米精密排种器作为打穴播种机的排种机构。
- Based on the working principle the adjusting range of construction and working p arameters were determined for the design of a spade soil opener for a punch pla nter. 根据铲式成穴器的成穴机理确定了其结构参数和工作参数的设计变化范围，并按照二次回归试验设计方法进行了成穴器参数对成穴性能影响的试验。
- On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace. 在分析铲式成穴器的结构特点和工作过程的基础上，建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。
- Abstract: On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace. 文摘:在分析铲式成穴器的结构特点和工作过程的基础上，建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Computer Aided Analysis on Working Process of A Spade Soil Opener 铲式成穴器工作过程的计算机辅助分析
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- She makes her living from the soil. 她以务农为生。
- Grass will not succeeded in this dry soil. 在这种干燥土壤中草不会成活。
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- A plant that grows in saline soil. 盐生植物一种生长在盐分土壤上的植物
