If the water stagnation is losing its pure, heart activity essence stand disappear.
水若停滞即失其纯洁，心不活动精气立消。
To avoid water stagnation on the system, the plant is equipped with an "economizer" that allows the system to run for 5 minutes for each 50 minutes of non-production time.
为避免水在系统中停滞，该装置装配有一个“省水器”，它可以使系统在非生产时间内每隔50分钟运行5分钟。
Unsafe water and inadequate sanitation are often major causes of lost work and missed school days, perpetuating the cycle of economic and social stagnation in many countries.
不安全的水和卫生条件不足，往往是失去了工作的一大原因，错过了上学的时候，在许多国家长期存在的经济和社会停滞周期。
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