But there are limits to this strategy, in as much as margins on undifferentiated production have proved low.
但是这种策略也尤其局限性。事实证明，未细分的商品生产带来的利润多是很低的。
Mass production, however, has proved elusive.
大批量生产已证明很难。
But moving the machines into mass production has proved problematic.
但是，把机器移动到大规模生产的证明问题。
Gamma rays have proved very helpful in medicine and industry. These rays are also given off by radioactive isotopes obtained as by-products in production processes.
射线已被证实在医学和工业上有很大的用处，这些射线是在生产过程中由放射性同伴素释放出的副产品。
Gamma rays have proved very helpful in medicine and industry. These rays are also given off by radioactive isotopes obtained as by - products in production processes.
射线已被证实在医学和工业上有很大的用处，这些射线是在生产过程中由放射性同伴素释放出的副产品。
Practice has proved: the application of this system has remarkable economic and social benefit, has very good application prospects in the rubber production trade.
实践证明：该系统的应用具有显著的经济和社会效益，在橡胶产品生产行业具有很好的应用前景。
Practice has proved, can maintain long-term safe production causes major in management.
实践证明，不能长期保持安全生产的原因主要在管理。
Based on material balance and heat balance, the system equipment are examined and proved suitable to the need of production.
在物热衡算基础上，对该系统的设备进行了校核，均能满足生产需要。
The practicality of the index is further proved by the analysis of the initial experiment and production data.
并进行了初步试验及生产数据分析，证实了该指标的实用性。
The process is proved to be worth of popularizing by the production practice in past years.
我厂这几年来的生产实践表明，该工艺具有一定的推广价值。
The result of the experiment of the segmenting well-logging curves satisfies the requirement in oil production. The method is proved simple, efficient and practical.
通过对石油测井曲线的分段实验，处理结果满足生产要求，证实该方法不仅具有简易性和高效性，而且具有实用性。
The numerical simulation model and prediction model on the blast furnace form an integrated analysis system, which is applied to actual production blast furnace and proved to be of practical value.
高炉过程的数值解析及软融带推断形成了比较完整的炉内状况分析体系，在实际高炉生产中的应用表明，该体系具有很好的实用价值。
The existence and superiority of the result of series LP have been proved and the feasibility of series LP method has been certified with the applied examples of refinery production planning.
证明了串联线性规划解的存在性和更优性，并通过炼油厂安排生产计划的实例说明了该方法的可行性。
It has been proved to be economic and practical by actual production.
经实际生产验证，具有较好的经济性和实用性。
The experiment proved the technology is practical that can be applied in production.
试验结果表明，该工艺是切实可行的，可以在生产中推广应用。
It has been proved in production that the white coating developed possesses better economical effects and practical values.
经生产验证，所研制的白涂料具有较好的实用价值和经济效益。
Compared between low and high aluminum level production, it is proved that high aluminum level was very important to improve the electric current efficiency.
通过对低铝水平生产和高铝水平生产的长期比较，证明了高铝水平对电流效率的提高具有非常重要的作用。
After the trial in actual production, it is proved that the die is convenient to operate, safe and reliable, and the casting quality can meet the requirements.
经实际生产检验，该模具在使用过程中操作方便、安全，工作稳定可靠，铸件质量达到要求。
The production practice proved that it had the advantages of excellent performance, relative cheap price and, easy operation.
生产实践佐证：具有优异的性能价格比，以及简便的操作服用性。
The production and practice of coal mines have proved that the dynamical phenomenon in mines have divisional and zoned characteristics.
煤矿的生产和实践证明，发生在矿井中的动力现象具有分区和成带的特点。
Practices have proved that it is a effective method of raising production efficiency but low the cost.
生产实践证明，这是一种提高生产效率，降低生产成本的有效方法。
The practice production has proved that the design was reasonable, the operation was stable and the service life was long.
经生产检验设计合理，操作稳定，合成炉使用寿命长。
Theory and practice hare proved that clean production is an important means to build environment-friendly society.
理论与实践证明，清洁生产是建设环境友好型社会的一项重要手段。
After data processing and application in practical production, the method is proved to be effective.
通过数据处理以及实际生产的应用，验证了方法的有效性。
Each of these subjects has proved to be a barrier to mass production of hydrogen fuel cars.
上述各科目已被证明是一个障碍大规模生产氢燃料汽车。
The method of removing statistics fluctuation with factorial moment was introduce and the cumulant variable able to even for distribution of multiparticle production was proved.
本文介绍了用阶乘矩能够消除统计起伏，证明引入累积变量后可使粒子数的分布变得均匀；给出了消除粒子间关联效应的方。
The practical production has proved that the design is reasonable and the service life is long.
经生产检验设计合理，使用寿命长。
The practical production has proved that the design is reasonable and the service life is long.
经生产检验设计合理，使用寿命长。
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