1、

The first observations of fluorine came from the 1500s, with a German mineralogist who described it as a material that served to lower the melting point of ore. In 1670, a glassworker accidentally found that fluorspar and acids would react and used the reaction to etch glass.

16世纪一位德国矿物学家开始研究氟,并把它描述为一种能降低矿石熔点的物质。1670年,一个玻璃厂工人偶然发现氟石和酸性物质能够发生化学反应,并将这一发现用于蚀刻玻璃。

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2、

Primary Study of Deep-Etch Synchrotron Radiation Lithography

深度同步辐射光刻初探深层生态学初析

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3、

Deep Etch Binary Optics Element

深蚀刻二元光学元件

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4、

Objective : To investigate the bonding sore ng hof a self-etch primer adhesive on orthodontic brackets.

目的: 探讨一种新型自酸蚀剂对托槽粘结强度的影响.

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5、

The modified technology improved the temperature field and fluid field of liquid steel in arc furnace, decreased the etch of bottom and gate of furnace and intensified the whirl of surface of liquid steel.

该项改进的技术改善了电弧炉内钢液温度场和流场,减少炉底和炉门局部侵蚀,加强钢水液面的旋转。

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6、

It may be the world's tiniest Etch-a-Sketch.

这可能是世界上最小的蚀刻画板.

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7、

It's a two-component , reinforced etch primer, containing phosphoric acid and corrosion-inhibitive pigments.

一种含有磷酸和 防腐蚀 颜料的双组份加强型磷化底漆.

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8、

Oxygen ECR/ RP plasma etches diamond successfully with an etch rate up to 8 μ m/ h. The etch rate and surface morphology are influenced by biasing frequency and self biasing voltage.

在射频偏压辅助下,氧等离子体成功地对金刚石膜进行了刻蚀,刻蚀速率最高可达8μm/h,偏压频率和直流自偏压大小均会影响刻蚀速率和刻蚀表面形貌。

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9、

Hydrofluoric acid of Porcelain Etchant and phosphoric acid of UNI-ETCH are severe eye and tissue irritants.

瓷酸蚀剂的氢氟酸和UNI-ETCH的磷酸是一种强烈的眼睛和组织的刺激物.

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