etr怎么读，etr的音标和真人发音
etr是什么意思，etr的意思是
[医][=effective thyroxin(e)ratio]有效甲状腺素比率
etr 的用法和双语例句“点击”或“选中”例句中的单词，就可以看到词义解释
- Italy 's etr 200 ( orelettrotreno 200 ) was an early electricity-driven high-speed train introduced in 1936 whose maximum speed topped out at 160 kilometers per hour .
- 意大利etr200型高速列车（或称elettrotreno200）是于1936年推出的早期电力驱动的高速列车，其最高行驶速度超过了160公里/小时。
- Although the production of the etr 200 was halted by world war ii and many were damaged by allied bombings , the etr 200 and its successors remained in service until the early 1980s .
- 虽然etr200的制造被第二次世界大战中断，并且许多在盟军的轰炸中毁于一旦，但etr200及其后继者一直服役到上世纪80年代初。