The retroperitoneal space was opened and the ureters were identified bilaterally. 打開(kāi)腹膜后隙，認清兩側宮旁組織。
Scientists show how Salmonella food bacteria in space become more virulent in their weightless surroundings. 科學(xué)家顯示腔隙的沙門(mén)氏菌食物細菌如何在他們的無(wú)重量環(huán)境方面變得更有毒。
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