Embroidery calls for great care . There must not be even a single sloppy stitch.刺绣要求很高, 一针也不能马虎.It is a headache to decipher his sloppy penmanship.辨认他的潦草的字迹叫人头痛.Mother constantly picked at him for being sloppy.母亲不断地批评他衣着...
PEG-DE引起了膜内的丝胶蛋白结晶形态的变化.PEG - DE caused the condensed structure of sericin films to change.同样, 如果密封间隙增大, 那么液膜内的力就会减小.Similarly, if the seal gap increases, then the membrane will reduce the force.自然海水的盐度会使得半透膜内的纯水流出来, 而植物...