switch lever with reversing counter-weight

the treatment and utilization of waste material in farm

畜牧场废弃物的处理与利用

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methods for chemical analysis of iron ores--the gas volumetric method for the determination of total carbon content

铁矿石化学分析方法气体容量法测定总碳量

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sodium and potassium silicates for industrial use; determination of carbonates content; gas-volumetric method

工业用硅酸钠和硅酸钾。碳酸盐含量的测定。气体容积法

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chemical analysis for silicon carbide refractories--determination of free silicon--gas volumetric method

碳化硅耐火材料化学分析方法气体容量法测定游离硅量

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chemical analysis for silicon carbide refractories--determination of silicon carbide--gas volumetric method

碳化硅耐火材料化学分析方法气体容量法测定碳化硅量

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sodium hydroxyde for industrial use. determination of carbonates content. gas volumetric method.

工业氢氧化钠.碳酸盐的测定.气体定量法

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potassium hydroxide for industrial use . determination of carbonates content . gas - volumetric method.

工业用氢氧化钾。碳酸盐含量的测定。气体容量测定法。

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mechanical analysis of the rupture failure of helical-weld pipe

输油管线螺旋焊口断裂失效的力学分析

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study on the groundwater storage rule in redbed mound areas by remote sensing data

利用遥感数据研究红层丘陵区地下水赋存规律

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introduction of silent hand mower in lawn

手推式静音草坪割草机介绍

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after an unsuccessful attempt at tending the yard with a hand mower, they now pay $50 a month to a gardener.

在自己努力割草失败后，她们每个月花费50美元请了个园丁。

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field popularization test of slowly released natural agent with immune enhancement for chicks

鸡用天然缓释免疫增强剂的田间推广试验

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washed the outside of endoscopy with warm water, and scrubbed the inserted part of the endoscopy with sponge dipped with natural agent;

在温流水下用手洗净内镜表面，再用海绵蘸中性剂将内镜的插入部分认真擦洗干净；

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conclusion: galla chinesis is one kind of effective cariostatic natural agent.

结论：天然药物五倍子具有有效的防龋效能。

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planning of single-sideband power line carrier systems

单边带电力线载波系统设计导则

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the new mode fits single sideband power market in hnunan. it might be available for reference to building eser power market in china.

该模式适合湖南省目前发电侧电力市场的需要，对我国建立节能减排电力市场也具有一定的指导意义。

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emery board material on front

前面是金刚板材料

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after cutting her nails, she used an emery board to make the rough edges smooth.

在修剪指甲后，她用指甲锉将边缘锉平。

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discussion of issues on liquefied gas tanker

技术论坛液化气体汽车罐车几个问题的探讨

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service points about body hollow on the liquefied gas tanker

液化石油气运输车罐体凹陷维修的要点

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