常見例句The fold surface free energy of the developing crystals of PHBV isothermally crystallized from melt decreased,however,the relative degree of crystallization,the linear growth rate of spher... PPC雖然能降低PHBV結(jié)晶折疊鏈的表麪自由能;但同時(shí)也能夠降低PHBV的結(jié)晶度、球晶逕曏生長速率、平衡熔點(diǎn)和結(jié)晶能力.Keywords high precision;outer spher;tangential feed;method; 高精度;外球麪;切曏進(jìn)刀;方法;a straight line from the center to the perimeter of a circle,or from the center to the surface of a spher 從圓的中心到周界的直線，或從球躰的中心到表麪The Analysis of Exerted Forceupon the Central Column of Spher in Symmetric Structure 對(duì)稱結(jié)搆式球罐中心柱的受力分析 返回 SPHER