Through heat treatment, material hardness and strength increase, but impact toughness decreases.

热处理后，材料的硬度和强度均有提高，但冲击韧度下降。

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The main reason for strength increase of V microalloyed steel is ultra-fine microstructure in TSCR process.

组织超细化是导致薄板坯连铸连轧流程V微合金钢强度提高的主要原因。

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PEI 5% in the content, the composite material has better mechanical properties, bending strength increase by 28.0%, impact strength 26.1%.

在PEI含量5%左右时，复合材料的综合力学性能较佳，弯曲强度提高了28.0%，冲击强度提高了26.1%。

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They said the overall strength of storms measured by wind speed might increase two to eleven percent by the year twenty-one hundred.

VOA: special.2010.08.24

Steroids are used to increase muscle strength.

VOA: special.2011.04.12

Kofi Annan believes that during this phase the UN force strength should increase from its present level of 4, 500 to around 5, 600.

BBC: Call for more Lebanon peacekeepers

Warm water provides fuel for tropical storms to increase strength and become fierce hurricanes.

CNN: NOAA predicts two or three hurricanes to hit U.S.

Finally, resistance workouts, especially those that include exercises focusing on balance and power, play an important role to increase strength and stability.

FORBES: Why Strength Training May Help You Live Longer