... mechanical aerator 机械打孔机 (22,122) mechanical cultivation 机械耕作 mechanical firming 机械填充（3，362） ...
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二耕地散碎不利于扩大农场经营规模或应用机械耕作者。
The arable land not suitable for expanding or for mechanizing.
耕作还会将土壤中的二氧化碳释放到大气中，而免耕能够保持住土壤中的碳，并且避免机械设备释放吸热气体。
Tilling also releases carbon dioxide from the soil into the atmosphere. No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.
农民在耕作和提高农作物产量方面越来越依赖复杂的机械设备，由此造成了农业技术人员和工程师的短缺。
Farmers are relying on increasingly sophisticated equipment to work the land and boost crop yields, placing a premium on agricultural technicians and engineers.
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