blackening

If this product blackening a bit , do not affect usage effect .

本产品若略微变黑，不影响使用效果。

The population density shows a positive correlation to the blackening degree of the needle .

松针红蜡蚧虫口密度与针叶变黑呈正相关，受害木的材积生长率受到较大影响。

He accused the newspaper of trying to blacken his name .

他指责报纸企图败坏他的名声。

They 're trying to blacken our name .

他们企图败坏我们的名声。

The married women of Shitamachi maintained the custom of blackening their teeth

下町的已婚女性还保留着把牙齿涂黑的习俗。

You need to grill the tomatoes until the skins blacken .

你得把番茄烤到皮变黑为止。

He accused him of knowingly spreading falsehoods in an effort to blacken my character

他指控他蓄意散布虚假信息以玷污我的人格。

Study on Stability of Blackening Quality for Steel at Normal Temperature

钢铁常温发蓝质量稳定性研究

A new surface treatment technology : room - temperature blackening

一种新型表面处理技术&室温发黑

Study on blackening agent for steel at normal temperature and control of quality

钢铁常温快速发黑剂的研制及发黑质量控制

Blackening Process for Iron and Steel Parts at Lower Middle Temperature

钢铁件低中温发黑工艺

Study On Steel and Iron Blackening Liquid Under Normal Atmospheric Temperature

钢铁常温发黑液的研究

Quick ; a new rapid chemical blackening process of stainless steel

不锈钢快速化学发黑工艺

An Investigation on Rapid Blackening Solution for Steel at Room Temperature

钢铁常温快速发黑液

A New Technique for Blackening of Iron and Steel Surface

新型钢铁表面发黑工艺研究

Study on normal temperature blackening agent for Iron & Steel

钢铁常温发黑剂的应用与研究

A test of lower middle temperature blackening on steel part was introduced .

介绍了钢铁件低中温发黑工艺试验。

Investigation of Room Temperature Blackening Technology for Iron and Steel

钢铁件常温黑化工艺的研究

Research on Surface Blackening Process and Mechanism of Titanium Alloys

钛合金表面发黑工艺研制及机理研究

Problems and skill in using of new blackening liquid at normal atmospheric temperature

新型常温发黑液应用中的问题和技巧

Study of selenium free blackening of iron and steel at room temperature

钢铁常温无硒发黑工艺的研究

Current status and prospect of the blackening of iron and steel

钢铁发黑技术的现状及展望

Study on Iron and Steel Blackening at Room Temperature

钢铁常温发黑溶液及应用研究

Application of Statistics Experiment to the Process Optimization of Copper Blackening at Room Temperature

应用统计学实验方法优化铜常温发黑剂配方

Development and Evaluation of a Blackening Agent of Iron and Steel at Room Temperature

钢铁常温发黑液的研制与评价

A Research on Room Temperature Blackening of Copper Products

铜制品常温发黑研究

Formulas and technology of steel blackening at room temperature have been studied .

对亚硒酸－铜盐－磷酸体系钢铁常温发黑的配方及工艺进行了研究。

A new process of electroless blackening on aluminum alloy was developed .

开发出一种铝合金化学发黑新工艺。

Research into the High Corrosion Resistance and Nonpoisonous Blackening Process of Steel

钢铁材料高抗蚀性无毒发黑处理的研究

The procedure , properties of solution and blackening coating were discussed .

阐述了该工艺的流程，溶液和发黑膜层的性能。