In 132 head of steam trap testing done shows that 42% of the traps have been effective.
在对蒸汽主管的132只疏水阀所做的检验表明，42%的疏水阀已实效。
The steel wire trap is a kind of simple and effective collection device for diesel engine particulate emission.
钢丝纤维捕集器是一种简单、有效的柴油机尾气颗粒排放收集装置。
The attractive activity of this attractant to M. alternates was similar with prototype attractant and the effective attractive radius and trap ratio was 70 m and 43.8% in forest, respectively.
该引诱剂引诱松褐天牛成虫的引诱活性与原型引诱剂基本一致，其林间有效作用半径和诱获率分别为70m和43.8%。
Diesel particulate Filter (DPF) is currently an effective and widely used approach to trap the particulate materials of diesel exhaust emissions.
对于柴油机微粒排放的控制，目前普遍采用的是柴油机微粒过滤器(DPF)，通过这种方式能除掉绝大部分的碳烟微粒。
The plastic trap demonstrated the better effective functions than iron trap, such as, easy to set up, portable and cheaper.
塑料轻型诱捕器具有效果好、安装操作简便、林间携带轻便和不易丢失、成本较低的优点。
The plastic trap demonstrated the better effective functions than iron trap, such as, easy to set up, portable and cheaper.
塑料轻型诱捕器具有效果好、安装操作简便、林间携带轻便和不易丢失、成本较低的优点。
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