The efficiency of steering pump of port tractor lost very heavy when engine was in high speed.
港口牵引车液压系统中的转向泵在发动机高速状态时的能量损失较大。
In polymer precise-extrusion, the on-line measured extrusion flux is often the basis to regulate screw-engine rotation or tractor speed to improve product-precision.
聚合物精密挤出加工过程中，通常以在线检测的挤出流量为基准调节主机或牵引机转速等来提高挤出制品精度。
In polymer precise-extrusion, the on-line measured extrusion flux is often the basis to regulate screw-engine rotation or tractor speed to improve product-precision.
聚合物精密挤出加工过程中，通常以在线检测的挤出流量为基准调节主机或牵引机转速等来提高挤出制品精度。
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