受控循环通风是一种新型的通风方式，在不提高矿井总的新鲜风量的同时，就能提高工作面的有效风量。
Controlled cycle ventilation is a new ventilation system. We could increase the effective volume of wind at work face without increasing the total volume of fresh air in the mine.
在形式上，一秒钟，或者说一次“滴答声”被定义为在小心受控条件下，微波能量喷发或是铯133原子吸收的9 192 631 770个循环。
One second is formally defined as 9, 192, 631, 770 cycles, or "ticks and tocks," of microwave energy emitted or absorbed by cesium-133 atoms under carefully controlled conditions.
你可以通过计算机受控巧克力的循环来调节绝缘体的通风。
You can regulate the ventilation of the insulators by calculating the circulation of manipulated chocolate.
水文循环的变化受控于自然和人类活动两组向量。
Changes of hydrological cycle are controlled by two sets of vectors as natural and human activities.
摘要目前复叠式制冷循环中采用的R22制冷剂属于受控物质，需要寻求新的替代制冷剂。
R22 is the main present refrigerants used in cascade refrigeration cycle, which are controlled materials and need to be replaced.
摘要目前复叠式制冷循环中采用的R22制冷剂属于受控物质，需要寻求新的替代制冷剂。
R22 is the main present refrigerants used in cascade refrigeration cycle, which are controlled materials and need to be replaced.
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