filters

Condsidering the real condition of filter production in the country,the concents,properties and advantages of state standard filters are introduced and the information of camera standardization is exchanged.

结合国内滤光镜生产实际情况，介绍了滤光镜国家标准的内容、性能及其先进性，交流了照像机综合标准化工作信

Having a sharp point or tip.

尖的,尖锐的有尖点或尖端的

pierce with a sharp stake or point.

用尖锐的树桩或者尖锐点刺穿。

cutting remarks; edged satire; a stinging comment.

尖锐的评论；尖锐的讽刺文学；尖刻的评论。

make a loud, piercing sound.

发出大的尖锐的声音。

To cause to make an abrupt, sharp sound.

使发出短促、尖锐的声音

a sudden sharp noise.

一种突然的、尖锐的声音。

They have all been sharp class struggles.

这是尖锐的阶级斗争。

he was incisively critical.

他受到了尖锐的批评。

a short light metallic sound.

清脆、尖锐的金属响声。

any implement that is used to make an edge sharper.

用于使边缘尖锐的工具。

an arch with a pointed apex.

有一个尖锐的顶点的拱。

make a sharp explosive noise.

发出尖锐的爆炸的声。

Her shrieks pierced the air.

她尖锐的叫声直刺云天.

sharpen with a strap.

用磨刀皮带使变得尖锐。

a single sharp crash of thunder.

一个尖锐、爆裂的雷声。

To cause to make a sharp, snapping sound.

使发出尖锐的爆裂声

a sharp high-pitched metallic sound.

尖锐高音调的金属声。

sharpen by rubbing, as on a whetstone.

在磨石上磨擦使变尖锐。