Ajax clients cannot really open a TCP socket connection with the back end.

Ajax客户端无法通过后端打开tcp套接字连接。

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CAUTION: all valves with fixed socket end connectors in the body must be installed in the open position to aid in evaporation of solvent vapors which can attack internal components.

注意：所有阀体带固定承插连接端口的阀门必须安装在开阔的地方，使得粘固剂蒸汽能够顺畅蒸发而不会损坏内部部件。

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CAUTION: all valves with fixed socket end connectors in the body must be installed in the open position to aid in evaporation of solvent vapors which can attack internal components.

注意：所有阀体带固定承插连接端口的阀门必须安装在开阔的地方，使得粘固剂蒸汽能够顺畅蒸发而不会损坏内部部件。

youdao