由于办公室和住家往往通风不良，这些化学物质会愈积愈多进而成为危害健康的物质。
As offices and homes often have inadequate ventilation, these chemicals can build up to become health nuisances.
拉扎·雷夫说，在长达22小时的险象环生分离手术后，玛利亚·特蕾沙由于脑部积血而被推回了手术室，手术又继续了将近5小时之久。
After the 22-hour risky separation surgery, Maria Teresa was wheeled back into the operating room for nearly five more hours because of a buildup of blood on her brain, Lazareff said.
实验室软土多级固结蠕变试验成果表明，海积软土具有非线性、不可逆的、与时间相关的固结变形特性。
The test result of multi-step consolidation creep of Marine soft soil shows that the consolidation of the soil has nonlinear, irreversible and time dependent behaviours.
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