While neither production nor consumption take place, but people are engaged in trade, to buy is to sell and make money from prices fluctuation, which is speculative.
既不生产又不消费，但是从事买卖，买进就是为了卖出，从价差中赚钱，这是投机性的。
The article also analyse the influences of agriculture inputment, macroeconomic policy, natural disaster and grain distribution on grain production fluctuation in China.
文章还进一步分析了农业投入、宏观经济政策、自然灾害和粮食流通对粮食生产波动的影响。
The new concept of balance production is put forward in view of the fluctuation in Luzhou-flavour liquor production.
针对浓香型白酒生产中出现的波动，提出了均衡生产的新概念。
In the polyester production process, the various production load and raw material may arise the DEG content fluctuation in the product and may effect dyeing evenness.
聚酯生产中，生产负荷、原料的变化均有可能引起成品中二甘醇含量的波动，影响纤维的染色均匀性。
Through the experiment to the in-situ production environment, the reasons for pressure fluctuation of instrument air drying system was found out, and effective preventive solutions were proposed.
通过对现场生产环境的试验，找出了仪表空气干燥系统压力波动的原因，提出了有效的解决、预防措施。
Chapter 5, using production economics, probed into the causes of stability and fluctuation in China's grain production.
第五章运用生产经济的理论和方法，探讨了中国粮食生产稳定和波动的成因。
The paper analyses the problem of inadequate self supply of coke and summarizes that the fluctuation of fine pulverized coal and the imbalance in charging are main reasons affecting coke production.
针对焦炭自供能力不足的问题进行了分析，煤粉碎细波动大、装煤量不均等是影响焦炭产量的主要原因。
As the situation of the whole country's cotton production, cotton production in Xinjiang has been in a significant fluctuation.
与全国的棉花生产形势一样，新疆的棉花生产也一直处于明显的波动之中。
These models are applicable especially for the case of great fluctuation in oil production of a well before fracturing.
该方法实用性强，适用于压裂前产量波动比较大的油井。
These models are applicable especially for the case of great fluctuation in oil production of a well before fracturing.
该方法实用性强，适用于压裂前产量波动比较大的油井。
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