Long term usage can cause irritation for the stomach.

久服对肠胃会有刺激。

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Long term usage can be toxic to the heart and kidneys.

长期服用可能对心脏与肾脏有毒。

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The paper adopts field test method and numerical simulation method to analyze the reliability of secondary lining during the construction and long term usage of the tunnel.

本文采用现场试验和数值模拟分析相结合的方法，对高速公路隧道在施工期间及运营期间长期阶段支护结构的安全性、可靠性进行了分析。

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The M5 Pro also makes use of True Speed Technology to prevent the drastic performance drop seen in some SSDs after intense or long-term usage.

ENGADGET: Plextor M5 Pro bulges SSD envelope with 94K IOPS and 540MB/s

In recent months, the USGA has declared long-term environmental sustainability, particularly water usage, to be one of its top policy issues.

WSJ: Why a Ball Rollback Might Not Fly | Golf Journal by John Paul Newport

To date, there have been no long-term studies on the effects of cell phone usage among children.

CNN: WHO: Cell phone use can increase possible cancer risk