The long-term usage may have certain untoward effect.

连续使用可产生一定的不良反应。

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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 rupture in the middle of bulk cargo is due to the corrosion and fatigue of components in long term usage, which leads the section modulus to reduce and the general longitudinal strength to weaken.

船舯断裂的主要原因之一是船体构件因长期受到腐蚀、疲劳等作用而造成船舯剖面模数降低，进而削弱了总纵强度。

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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