Under conventional till, crop response to spring soil water content was considerably greater than under zero till.
在常规耕作条件下，春季作物对土壤水份含量的响应要比免耕地大得多。
In summary, under zero till crop response to nitrogen levels in the spring was approximately twice as large compared to conventional till.
总之，在免耕地条件下，春季作物对土壤含氮量的反应大约是常规耕作的2倍。
When Smale reported back to the board in March, he didn't bring good news, as I recounted in Sixty to Zero, published this spring in soft-cover by Yale University Press.
当斯梅尔3月向董事会汇报时，他没带来什么好消息。在今年春季耶鲁大学出版社（Yale University Press）出版的平装新作《60到0》（Sixty to Zero）中，我回顾了这一场景。
This paper deals with the problem of how to skilfully select spring elastic potential energy zero in applying law of conservation of mechanical energy, and makes some analyses combined with examples.
在应用机械能守恒定律时，如何巧选弹簧弹性势能零点问题进行了探讨，并结合实例进行了分析。
If the force P is reduced or made zero, the elastic force will restore the spring to its original unstretched condition.
如果力P减小或变为零，那么弹性力就使弹簧恢复当初的未伸长状态。
If the spring machine after each zero zero position is not accurate, it may be the problem of driving parameters.
若是弹簧机每次归零以后零点位置都不准确，那就可能是驱动参数的问题。
This paper describes the automated Burris metal zero-length spring gravity meter produced by the Zero-Length Spring Corporation, USA, which is an upgrade of LaCoste & Romberg land meters.
美国零长弹簧公司（Zero-LengthSpring Corporation）生产的贝尔雷斯（Burris）金属零长弹簧自动重力仪，是拉科斯特-隆贝格（LaCoste&Romberg）陆地重力仪的升级产品和重大改进。
This paper describes the automated Burris metal zero-length spring gravity meter produced by the Zero-Length Spring Corporation, USA, which is an upgrade of LaCoste & Romberg land meters.
美国零长弹簧公司（Zero-LengthSpring Corporation）生产的贝尔雷斯（Burris）金属零长弹簧自动重力仪，是拉科斯特-隆贝格（LaCoste&Romberg）陆地重力仪的升级产品和重大改进。
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