The delivery boy dumped the groceries on the back porch.送货员猛地把食品杂货扔在后面的门廊上。Sir, Would eager to trap porch or chalkiness Tee?男士, 你想在蓝色或白色的发球台上发球?We rolled up to the front porch.我们坐车抵达前门廊。The old man napped on the porch.那位...
The main difficulty was failure of refractories at high temperature.其主要的困难是高温下耐火材料的损坏.This is not to belittle the enormous progress in the development of refractories.这并非是小看耐火材料发展中的巨大进步.Commodities, Sugar Wheat Soya, Iro...
HIV - 1 integrase ( IN ) integrates viral DNA into host cells through two steps metal ions - dependent reactions.HIV -1 整合酶 ( IN ) 通过依赖金属离子的两步反应将病毒DNA整合入宿主细胞中.IntI 1 integrase gene and class 1 integron marker genes were ...