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- model for economic service life of pipe 管道经济使用寿命模型
- STUDY ON ECONOMIC SERVICE LIFE OF GANTRY CRAND FOR FORESTRY IN FUJIAN PROVINCE 福建省林用装卸桥合理更新期的研究
- Keywords LHD;Economical service life;Service life; 铲运机;经济寿命;服务年限;
- STUDY ON ECONOMICAL SERVICE LIFE OF EQ-140 LOGGING TRUCK EQ-140型运材车经济使用年限的研究
- FUJIAN FOREIGN ECONOMIC SERVICE TRADE. 福建省对外经济服务贸易公司。
- Nonpoisonous light and long service life. 无毒、质轻、使用寿命长。
- Ah, yes. Now what about service life? 哦,好的。关于使用寿命呢?
- Lengthens the engine service life. 延长发动机使用寿命。
- Elastic sealing, no leakage and long service life. 弹性密封,零泄漏,使用寿命长。
- Good sealing,wear-resising,longer service life. 密封可靠，耐磨损，使用寿命长。
- Brand new bearing prolongs the service life. 全新轴承，增加使用寿命。
- economic service life 经济寿命
- Stellite 6 seating faces for long service life. 钨铬钴合金6阀座面,使用寿命更长。
- The cloth bag has long service life and can be changed easily. 清灰装置耗能低,每小时用电小于、布袋使用寿命长,更换简单方便。
- Of combusting arc, and improve the service life of load fuse box. 和消弧材料的损耗,以提高载熔件的使用寿命。
- Bonnet Joint - accurately machined for better service life. 阀帽连接-精密机加工,使用寿命更长。
- It aims to develop an effective,efficient and economic service which meets the needs of the public. 其工作目标是发展有效、迅速及经济的服务，以满足市民的需要。
- The resulting increased bearing load shortens bearing service life. 由此引起的轴承载荷的增加会缩短轴承的使用寿命。
- Intangible assets with uncertain service life may not be amortized. 第十九条使用寿命不确定的无形资产不应摊销。
- It aims to develop an effective, efficient and economic service which meets the needs of the public. 其工作目标是发展有效、迅速及经济的服务，以满足市民的需要。
