Connecting Pla?a de Catalunya with Port Vell's Christopher Columbus Monument, this central Barcelona street is like a party that never sleeps.
把加泰罗尼亚广场和旧港的克里斯托弗·哥伦布纪念碑连接起来的这条巴塞罗那的主干道就像一个永不散场的宴席。
This paper presents a new type of PLA (R-PLA) which is made up of AND-EXCLUSIVE-OR array.
本文提出了一种新型的PLA (R - pla),它是由“与一异或”阵列组成的。
In this paper, the polylactic acid is synthesized by two-step method from lactic acid to lactide, then open-ring polymerize to PLA (polylactic acid).
采用二步法由乳酸制备丙交酯,由丙交酯的开环聚合制备高分子量的聚乳酸。
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