产品经工业现场使用试验证明，极压抗磨性能完全能够满足设备的使用要求。
Antiwear - extreme pressure properties of the products can meet the requirement by industrial field tests.
经现场使用试验证明，本研究所制备的具有梯度结构的硬质合金顶锤、涂层刀片以及硬质合金钻齿的使用性能均明显优于常规均匀结构的硬质合金。
Practical tests show that the performance of cemented carbide anvils, coated blade and drill bits with graded structure developed in this dissertation are superior to those with regular structure.
而且网络表示，与英格汉姆的说法相反，环保局从未被要求考虑使用微生物进行现场试验。
What's more, the network says that contrary to Ingham's claims, the EPA was never asked to consider the organism for field trials.
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