较低温度下, 分子热运动能量很低, 只有较小的运动单元，如侧基、支链和

较低温度下, 分子热运动能量很低, 只有较小的运动单元，如侧基、支链和链节能够运动, 而分子链和链段均处于被冻结状态,

結果 (英文) 1:

Lower temperatures, the thermal motion of molecules is very low, only smaller units of movement, such as base, branched-chain motion, molecular chains and chains are in a frozen state,

結果 (英文) 3:

Under low temperature, the molecular energy of thermal motion is very low, only a small motor unit, such as side groups, and capable of moving and branched chain, the molecular chains or chain segments are in a state of being frozen,