After the renovation of the urea unit to enlarge its capacity, the prilling tower becomes the bottleneck in capacity increase.
尿素生产装置扩能改造后，造粒塔成为扩产的瓶颈。
Immediately after forming the joint venture, CCEC invested almost Rmb 200 million in technical renovation and capital improvements, both to increase capacity and to improve quality.
合资以后公司即投入了大约2亿元人民币，用于技术改造以改进质量和扩大生产能力。
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