反应釜各阀采用针形阀，往复关闭形式，密封可靠经久耐用，各类阀安装合理，泄放畅通，无死角。
The reaction kettle each valve adopts of the needle valve, reciprocating closed form, sealing is reliable and durable, all kinds of valve is reasonable, bleeder unblocked and no dead Angle.
运用试验结果定量分析了填土路基在往复列车荷载作用下应力应变反应特性，剖析了路基病害产生的原因。
Using the test results, the stress strain behavior of the subgrade was quantitatively studied, and the causes of diseases in subgrade were analyzed.
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