n. caterpillar
misc. caterpillar track
将准贝氏体铸钢应用于采煤机链轨架。
The chain guide frame of coal cutting machine is produced with metabainited cast steel.
分析了磁链轨迹跟踪pwm控制的基本原理。
This paper presents the principle of PWM based on flux linkage locus control.
铝合金链轨，磨擦系数小，拉片平顺，外加不锈钢耐磨边框。
The aluminum alloy caterpillar track, the friction factor is small, pulls the piece to be smooth, sur - stainless steel wear-resisting frame.
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