If bearings are not heated beyond the permissible maximum temperature (Table 1.7), the length changes illustrated in Figure 1.72 do not occur.

如果轴承没有超出允许的最高温度(表1.7)加热，长度变化如图1.72不会发生。

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Specifically, the 3C wants governments to set maximum permissible levels for a global temperature increase and define greenhouse gas reduction targets by 2030 and 2050.

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