1·The problems such as noise, abnormal sound, heat and lubricating oil leakage of front gear box of DF 8b locomotive are analyzed in detail.
对东风8 B型机车前变速箱存在的噪音、异音、发热和机油泄漏等问题，进行了详尽的分析。
2·Study of new generation lubricating grease for heavy - duty gear has been discussed elaborately, including its composition, performances and applications.
论述了新一代重负荷齿轮脂的研究，包括其组成、性能、应用。
3·The gear pump is suitable in the transportation does not contain the solid particle, non-corrosiveness, the viscosity scope big lubricating ability liquid.
齿轮泵适用于输送不含固体颗粒、无腐蚀性、粘度范围较大的润滑性液体。