ITTO also runs field tests on the implementation of criteria and indicators at the forest management unit level in tropical countries.

国际热带木材组织还在热带国家就森林管理单位级标准及指标进行实地试验。

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Field tests also show that the self-resonating cavitation nozzle is highly effective in reducing bit wear, increasing drilling footage and drilling speed.

现场试验同样证实设计的自振空化射流喷嘴在保护钻头、减少钻头磨损及增加进尺、提高机械钻速方面有显著作用。

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The completed field tests show that the new type flexible disc also can open quickly, discharge stably, and reseat timely and effective under medium pressure comparing with the rigid disc.

所完成的现场试验表明，与刚性阀瓣相比，新型柔性阀瓣在介质压力作用下同样能迅速开启、稳定排放介质和及时有效的回座。

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