通过观察存在于极端环境下的生物，研究人员发现液态水只能在有限范围内的温度和压力下供生物使用这些发现会让科学家对外太空生命的搜寻集中到太阳系来。 莱恩威弗说：“我们猜想在地球上找到的这些限制条件是限制所有以水为支撑的生命的基础。”
After compiling observations of life in extreme environments, the researchers found that liquid water in only a limited range of temperatures and pressures can support life.
如果是使用生物阻抗电子秤，确认每次是在同样的条件下。水和作用，吸入的食物和皮肤温度能过影响体脂的测量。
If using a bioelectrical impedance scale, be sure to measure under the same circumstances each time. Hydration, food intake and skin temperature can affect body fat measurements.
归纳解析器被认为比在恶劣工作涉及极端温度(220 C)，高冲击，振动或肮脏的环境条件下的使用旋转编码器坚固。
Inductive resolvers are considered more rugged than rotary encoders for use in adverse operating conditions involving extreme temperature (up to 220 c), high shock, vibration or dirty environments.
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