以下为句子列表：
英文: Currently, China's production of a common valve leakage, which leak, visual quality is not high, short life, and not flexible operating valves and electrical devices such as pneumatic devices unreliable shortcomings of some products, only the equivalent o
中文: 目前我国企业生产的各种阀门普遍存在着外漏、内漏、外观质量不高、寿命短、操作不灵活以及阀门电动装置和气动装置不可靠等缺点，部分产品只相当于上世纪80年代初的国际水平。
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