自然经济的存在，无法消除宗族势力赖以存在的血缘地缘环境，这为宗族势力的复活提供了土壤。
The existence of natural economy, for which we couldn't extinguish the consanguineous and geographic surroundings of clan force depending on and it nourishes the clan force.
单晶材料消除了晶界对畴壁移动的影响，具有很好的低场下的位移输出能力，这为微位移致动器的研制奠定了很好的基础。
These excellent single crystals, possessing a large displacement output under low magnetic field, build a foundation for the fabrication of the high precision micro-displacement actuators.
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