查询词典 titanium dioxide

With the coordinated interacton of the abrasive particles in dentifrice, can it abrade or corrode dental restorations made from titanium and change their luster and color so as to influence their appearance and long-term use.

含氟牙膏中一般含有氟化钠或单氟磷酸钠，pH值低于7，在摩擦剂的协同作用下是否对口腔中钛制修复体有磨损和腐蚀作用，使其发生失泽和变色，以致影响它的美观和长期使用？

Size effect of the absorptance of the ultra-thin titanium films .

超薄Ti膜吸收率的尺寸效应。

The relationship between absorptance and thickness of ultra-thin titanium film in visible, IR region were investigated, results showed that the absorptance of the metal films had size effect.

研究了超薄Ti膜吸收率和直流电导率与薄膜厚度的关系，结果表明，超薄Ti膜的吸收率具有尺寸效应，并具有极大值，其结构特征变化是导致吸收率尺寸效应的重要原因

But unlike other metals, titanium has a characteristic that enables application of different bright colors to accentuate them.

但不同於其他金属，钛有一个特点，使应用不同的明亮的颜色突出他们。

Defended Er of · Du Wa one round to hit 59 pole greatly, callaway rolls out wood pole of metal of accipitral eye titanium.

大卫·杜瓦尔一轮打了59杆，Callaway推出鹰眼钛金属木杆。

They are acrylic titanium ...

他们是丙烯酸钛。。。

Because of the adulteration of phosphor in nuclei the grain size distribution and sinter of titanium white are controlled effectively.

由于晶格的早期掺磷，从而有效地控制了钛白在煅烧时的粒径分布和烧结。

Three new paint colours are available for 2010, Premium White Pearl, Urban Titanium and Alabaster Silver.

三种新的车身颜色可供2010年，优质白珠，钛和雪花石膏市银。

The catalyst includes: supported Ziegler-Natta catalyst of titanium halide compound and organic electron donor compound supported with MgCl2 alcoholate carrier; aluminoxane prepared with trialkyl aluminum and water; and one kind of organic electron donor, such as organosilicon compound R2Si(OCH3)2, where R is phenyl, isopropyl, isobutyl or cyclopentyl.

该催化剂包括，a一种负载型的Ziegler-Natta催化剂，即将卤钛化合物和有机给电子体化合物负载在氯化镁醇合物载体上得到的固体催化剂，b一种通过三烷基铝与水反应而制备得到的铝氧烷和c一种有机电子给体，如有机硅化合物R 2 Si(OCH 3 ) 2 ，其中R为苯基、异丙基、异丁基或环戊基。

MATERIALS : Body of blood pump and impeller were titanium alligation, and shaft bearing was ceramic.

材料：血泵泵体及叶轮为钛合金材料，轴承为陶瓷轴承。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。