The assembling, actuating, water-tight test of pump-turbine globe valve and its quality control are introduced.
介绍了抽水蓄能水轮机球阀装配、动作及密封漏水试验工艺性与质量控制。
The rainstorm runoff is one of the major surface source pollution, its control and management is the main content of the regional water quality improvement plan.
暴雨径流是重要的地面污染源之一，对它的控制和管理是区域水质改善计划中的主要内容。
Thee control efficacy with hot-water treatments to postharvest diseases and its effects on the quality of strawberries were investigated.
研究热水处理对草莓采后病害的抑制作用及对贮藏品质的影响。 ?。
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