In addition to a six-way valve used in conventional autosamplers, a direct injection valve (DIV) was de- signed and used in the autosampler.
除了需要常规自动进样器的六通切换阀，还设计了一个直接进样阀（DIV）用于自动进样器。
Original control principle of hydraulic and electric system have been changed in de-sign of equipment to avoid defects such as folding, burning etc produced in upsetting of large air valve preform.
为防止大气门毛坯在热镦粗过程中产生的折叠、过烧等缺陷，在设计设备时改变了原有的液压控制和电气控制原理。
All of patients underwent direct suture closer or patch method, 10 cases received De Vega tricuspid valve repair, and 3 cases mitral valve repair.
房间隔缺损修补采用直接缝合或心包片修补，同期行三尖瓣成形术10例，二尖瓣成形术3例。
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