1. SEA-107型变频异步牵引电机_SEA-107型变频异步牵引电机知识该机车采用引进日本TOSHIBA公司开发的SEA-107型变频异步牵引电机,该电机符合IEC60349-2标准,有着优异的调速性能,与传统的韶山系列等直流牵引电机相比, SEA-107型变...
2. Sea-level rise and human migration | Nature Reviews EarthAnthropogenic sea-level rise (SLR) is predicted to impact, and, in many cases, displace, a large proportion of the population via inundation and ...
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4. Sea Turtles in the SandA mother turtle comes out of the sea to lay her eggs in the sand.... 字数(Words) 107 类型(Fiction) Non-Fiction...去哪儿买 Sea Turtles in the Sand...
5. Sea Turtles in the SandA mother turtle comes out of the sea to lay her eggs in the sand.... 字数(Words) 107 类型(Fiction) Non-Fiction...去哪儿买 Sea Turtles in the Sand...
6. ...and Deep-sea Aquaculture Technology -经过我们公司多年的研发和潜心研究,于2018开发出一种安全,环保,高效,安装简单,可塑性强,性价比高,可循环使用的新型高分子材料型材——PE/HDPE海洋防滑踏板。 ...
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