什么时候开始给我的孩子断奶最好？When would be the best time to start weaning my baby?断奶要一步步来。Weaning should be a gradual process.小猪通常在八周时断奶.Traditionally piglets were weaned at eight weeks....
Hard work ennobles human spirit.艰苦的工作使人精神变得高尚.It improves the taste, ennobles the heart , elevates the mind, refines the and intensifies dignity.它使人增加趣味,放宽心胸, 拓展视野,高贵修养, 以堂堂之风为其所欲....
这些云带必定引起行星反照率的经向不对称性.These bands must introduce longitudinal asymmetry in the planetary albedo.如果恒星的光谱已知, 就可得出尘埃的反照率.If the stellar spectrum is known, the albedo of the dust can be obtained.有云区也可能是输射亏损区,因为云有较高的反照率.Cloudy...
目的: 研究P糖蛋白抗原表位和表达.Purpose : To study antigenic epitopes and expression of P glycoprotein.目的: 用大肠杆菌表达猪细小病毒NS1基因的主要抗原表位区.Objective: Express major epitope domain of NS 1 of PPV in E.其在HLA-A2转基因鼠中可诱导出强的表位特异性细胞毒性T淋巴细胞活性.The t...
厨师把鸡燎一下,以便去掉细毛.The cook singed the chicken to remove the fine hairs.芳香, 浆果朱红色, 种皮有纤维质细毛.Balmy, berry is vermeil, seed coat has fiber qualitative fine fur.只有一边有细毛的棉线纤维.Soft, loosely twisted thread , as of silk or cotton ,...