以正二十烷 、 聚乙烯和乙丙橡胶等为原料经熔融挤出,制成正二十烷含量10%~65%的共混切粒.The blended chips containing 10 % ~65 % of n - Eicosane were fabricated with n - Eicosane, polyethylene ( PE ) and ethylene - propylene copolymer....
The villi , crypts, goblet cells and endocrine cells were presen - ted during 9 th week.十二指肠的绒毛、肠脲 、 杯状细胞和内分泌细胞于第9周胎出现.The wall is thin and almost transparent probably due to atrophy of the villi.肠壁薄,几乎是透明的,这可能是因绒毛萎缩.The...
If he feels hotter than normal, take his temperature.如果他感觉比平时热，量量他的体温。Remember that the top of the oven will be hotter than the bottom.记住，烤炉的顶部将比底部温度更高。Was it really hotter, or was he weaker?是天气比往年热呢, 还是自己的身体虚 呢 ?...