Various additives are used to control density, setting time, strength and flow properties.

可用不同的添加剂去控制水泥的密度、凝固时间、强度和流动性能。

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As the city struggles to accommodate its highest population in history, past efforts to control density coupled with economic hardships have led to infrastructure surpluses and abandoned buildings.

随着城市努力适应历史上的最高人口，过去对于控制人口密度及经济困难的努力，导致基础设施过剩以及大量的废弃建筑物的产生。

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You can land on an airstrip with various approach patterns, depending on air traffic control guidelines due to weather, traffic density, wind speed, and so on.

您可以使用各种各样的方法模式在飞机跑道上降落，这取决于由天气、交通密度、风速等等因素决定的空中交通控制指导。

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After three years, those in the exercise therapy group had maintained their bone density, unlike the small control group that was inactive.

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That enables control over interference, which in turns boosts range and device density.

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For example, if you eat when you are stressed, try to choose foods that are very low-calorie density like air popped popcorn or vegetables and hummus to keep calories under control.

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