The Central Plains earth, is be lush most fertile only, land under heaven population lives in a compact community very likely hereof.
中原大地,是被茂密的最肥沃的唯一,土地天堂的人口生活在一个紧凑的社区极有可能约定。
Subsoil tillage was an effective way to improve and utilize the compact soda-alkaline land with high soil bulk density.
深松措施可作为土壤紧实、容重较高的苏打盐碱土改良与高效利用的有效耕作方式加以实施。
Vacuum pump technology by using liquid-ring vacuum pump possesses the advantages of less energy consumption, compact structure and less land occupied.
机械抽真空技术具有能耗低、结构紧凑、占地少的特点。
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