二种环节动物皆具有闭锁循环系，包括管状的心脏及背血管，腹血管。用大头针标示二标本的下列构造：。
Both annelids possess a closed circulatory system with tubular hearts and a dorsal and ventral blood vessel. In both specimens, pin the following.
一部分冷却的粗煤气循环至气化炉用于煤闭锁式料斗的再压缩。
A portion of the cooled raw gas is recycled to the gasifiers for repressurization of the coal lock hoppers.
结论：先天性食道闭锁修补术的合理麻醉处理应包括充分的术前准备、严格的呼吸循环管理及严密的监测。
Conclusions: The keys to anesthetic management for esophageal atresia repair are strict respiration-circulation management, rigorous monitoring, and sufficient preparing is also important.
各控制指令之间的相互闭锁、自动循环形成等有着特定的要求。
There are some specified requirements for the block and round form for each of the different instructions.
各控制指令之间的相互闭锁、自动循环形成等有着特定的要求。
There are some specified requirements for the block and round form for each of the different instructions.
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