|
|
| 81. | The third - deepest soil zone in ABC soil, unaltered by weathering and made up of the parent rock from |
| 剖面层ABC土壤剖面层中深度排第三的剖面层，不受风化的影响，由上两层及其他矿物组成的母岩所构成 |
|
|
| | |
| 82. | These tunnels also serve to help the air move more easily through the soil. |
| 这些孔道也有助于空气轻易地透进泥土里面。蚯蚓在泥土里不停地钻来钻去，就如同人们在地面上用耙子、铲或犁来掘松泥土一样。 |
|
|
| | |
| 83. | Lhasa, and in important agricultural areas forest shelter belts were built around the fields to reduce soil |
| 在拉萨周边地区实施造林绿化工程，在重要农业区推广农田林网化，降低风沙对土壤的侵蚀。 |
|
|
| | |
| 84. | A causal diagnosis is conducted on the yellows of Machilus thunbergii by means of the soil-plant chemical |
| 摘要采用土壤植物化学分析、酶学诊断和田间试验对舟山市朱家尖苗木基地盐碱地土壤红楠黄化成因进行了研究。 |
|
|
| | |
| 85. | The addition of lime to saturated clay soils (liming) is a common agricultural practice, improving soil |
| 加入石灰使其饱和是农业上常用的一种方法，通过促进小块形成改变土壤结构，使粘重土壤变得可以使用。 |
|
|
| | |
| 86. | primary consolidation under charge is worked out, taking the deformation of second consolidation caused by |
| 在考虑软土超载预压后的次固结变形特性的基础上,推导出消除使用荷载作用下的主固结所需预压时间的公式。 |
|
|
| | |
| 87. | The Tibet Plateau belongs to the alpine cold meadow and steppe landscape, which is characterized by poor |
| 西藏高原属高寒草甸和草原区，水土保持能力差，水土流失问题较为严重。 |
|
|
| | |
| 88. | right-of-way of and flanking the railway line shall be conditioned as key territories for water and soil |
| 第四十五条铁路线路两侧地界以外的山坡地由当地人民政府作为水土保持的重点进行整治。 |
|
|
| | |
| 89. | communities wherever they had still managed to survive, and with them the common cultivation of the soil |
| 各个家庭首长之间的财产差别，炸毁了各地仍然保存着的旧的共产制家庭公社； 同时也炸毁了在这种公社范围内进行的共同耕作制。 |
|
| -- 来源 -- 家庭、私有制和国家的起源 - jiatingsiyouzhi_11 |
好评(10) |
差评() |
|
|
| | |
| 90. | compilation and implementation of soil and water conservation scheme are important measures to prevent soil |
| 水利水电工程建设项目剥离表土多，施工占地面积大，对其进行水土保持方案编制和实施，是防治人为活动造成水土流失的重要措施。 |
|
|
| | |