However, the brake thermal efficiency increases and the CO emissions almost equal at high loads.
高负荷时发动机有效热效率增加而CO排放基本相当。
The results show that the thermal efficiency of the torch increases with the increase of the gas flow rate, the nitrogen or hydrogen content and decrease of the length of torch.
研究结果表明通过适当提高进气流量、提高混合气体中的氮气或氢气含量和减少喷枪通道长度，均能提高等离子喷枪热效率。
The results show that: if the height of the air inlet increases, the thermal efficiency will improve, and the heat and energy recovery device will be more safe.
研究表明：空气入口面高度加大有利于提高余热余能回收装置热效率和安全性。
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