Research shows that this could be mainly caused by improper use of backpacks.

研究表明，这可能主要是由于使用背包不当造成的。

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The improper use of medicine could lead to severe adverse reactions.

用药不当会引起严重的不良反应。

《柯林斯英汉双解大词典》

The aim of the agreement was to prevent the improper use of the country's bank secrecy laws, and its effect was to curb severely the system of secrecy.

该协议的目的是防止人们不恰当地使用该国的银行保密法规，它的效果是严厉遏制保密制度。

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Warranty does not cover damage or defects caused by abuse or improper use of your device.

ENGADGET: Sony ships Xperia advance to the US, offers unlocked ruggedness for $300 or less

The data in the system must be protected from improper use, and limitations on improper use must be included.

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Phoenix defends its practices and says it will continue to fight what it sees as the improper use of life-insurance policies.

WSJ: Fortress and Phoenix in Battle Over Death Bets