The surgical mask is not as effective at trapping tiny particles and the paper mask is not effective at all.
外科口罩对于阻隔极小微粒并不十分有效，而纸制口罩根本无效。
Method 2: put 10 drops to water and soak paper mask or towels then cover the face for 15 minutes, gently massage then apply anti-acne cream.
用法：洁肤后，直接涂于患处，或取10滴于水中，用面膜纸或毛巾湿敷15分钟后稍加按摩，再涂抹祛痘霜。
Step Four: along the dotted lines of paper mask edges with a small cone or a thumb tack in the pumpkin skin delineate Facebook. Completed, remove the paper mask.
步骤四：沿纸脸谱的虚线边，用小锥或者图钉在南瓜皮上描出脸谱。完成之后，撕下纸脸谱。
Well, a new paper came out earlier this year, in which the authors claim to have found a problem with the mask used by looking at distant, luminous red galaxies.
今年早些时候一篇新的论文发表，其中作者声称在用遮光板观察远距的红色明亮星系时发现了一个问题。
The upshot is that you can write on Dr Grzybowski’s paper (using a pen that emits ultraviolet light) or print on it (using a patterned mask through which such light is shone).
结果便是你能在Grzybowski博士的纸上使用放射紫外线的笔书写或是用放射紫外线的磨具印刷。
This is two years, his theatrical mask, especially the "Bao", more so that he won the paper-cut king "crown, while his real name, Mrs Wong."
这二年，他的戏剧脸谱，特别是“包公”，更使他夺得了剪纸王“的桂冠，而他的真名叫王太。”
As time goes by, a sheet gets thinner like a paper since the nutritive substance the mask sheet contains will be permeated into a skin.
随着时间的推移，面膜中所含的营养物质渗入肌肤，面膜会变得像纸一样薄。
The preparation process and the performance test of the ammonia absorbent for gas mask was introduced in this paper.
本文介绍了可用于现有防毒面具的氨吸收剂的制备方法及其性能测试方法。
This paper describes a method for measuring particle size of inhaled aerosol with a phantom of human head wearing dust-proof mask anda cascade impactor.
本文介绍了应用级联撞击器和佩戴口罩的人头模型在天然铀燃料元件加工现场测定吸入气溶胶粒度的方法。
The paper focuses on the architecture of subnet mask and long mask, verifying the partition method of subnet shortcut via understanding of logic relations.
文章从子网掩码的概念入手，主要分析了常用子网掩码和变长掩码的结构，通过对逻辑关系的理解，验证了划分子网捷径的方法。
This paper investigates the mask master initiatively and discusses the design and manufacture method of the primary master, working master and working plate in concrete terms.
本文对荫罩母版进行了初步探讨，并对原始母版、工作母版和工作底版的设计与制作进行了具体的论述。
This paper introduces the mask taboo at home and abroad, and gives analysis to the three types of mask in Guizhou, namely Zuotaiji, Nuotangxi and Dixi.
本文广泛介绍了国内外存在的面具禁忌现象，并着重对贵州撮泰吉面具、傩堂戏面具和地戏面具的禁忌进行了深入的分析。
The paper analyses the gray-tone mask physical mechanism, coding and optimum process.
本文分析了它的物理机制、掩模类型、编码过程、约束条件和优化方法。
The fabrication of X-ray stencil silicon mask and its application in X-ray deep lithography are presented in this paper.
阐述了X射线镂空硅掩模的研制及其在同步辐射深层光刻中的应用。
A method of photo-mask lithography for fabrication of micro Fresnel lenses Arraywas presented in this paper.
本文介绍用制版的方法制作的微菲涅耳透镜列阵及其成像实验。
Therefore, a new approximation model for alternating phase shift mask considering shadowing effects was proposed in this paper, and shadowing ratio was redefined.
因此本文针对交替式相移掩模，提出了一种考虑阴影效应的近似模型。
The principle for improving microlithographic resolution and focal depth with phaseshifting mask is described in detail in the paper.
详细地论述了相移掩模提高光刻分辨力和改善焦深的原理。
This paper makes a brief analysis of the symbolism of such images as the fog, land, sea, and island, the use of the mask, and the interweaving of monologue, aside, and dialogue in his works.
本文对这类作品中雾、陆地、大海、岛屿的象征性，面具的运用，独白、旁白、对白的交错等略作分析。
In this paper, an improved spatial mask filter algorithm is proposed and applied in partial discharge pulse extraction.
提出了改进的空间屏蔽滤波算法，并将其应用于局部放电脉冲信号的提取。
This paper analyses the blocking voltage, forward voltage drop, photoresist mask design and gate-triggering and dynamic characteristics of high-power thyristors.
本文对大功率可控硅的阻断电压问题、正向压降问题、光刻掩模板的设计问题、控制极特性问题以及动特性问题进行了分析。
Jingtailan cloisonne, jade, silk embroidery etc are very ancient; and native handicrafts such as clay figurine, Peking opera mask, kites, paper-cuttings etc are inexpensive and make excellent.
景泰蓝、玉器、丝绸刺绣等历史悠久；民间手工艺品，如泥人、京剧脸谱、风筝、剪纸等物美价廉，都是馈赠亲友的上佳礼品。
Using this conclusion and considering the characteristic of grating projective images, the paper creates the 0-1 value mask to compress the DCT coefficient matrix.
利用此结论创建用于压缩的二值掩模矩阵，并对光栅投影图之一的位相图进行基于离散余弦变换的压缩。
This paper presents a new no shadow-mask colour picture tube with three-in-line electron gun and linear phosphor strips.
本文提出了一种三束一字型具有线形荧光粉条的新型无荫罩彩色显像管。
Furthermore, the paper summarizes and extends the problem of the generation of ROI mask.
同时，本文还就图像感兴趣区域掩膜生成的问题进行了一些总结和推广工作。
From the Angle of noise detection, this paper presents a mask-based no-reference approach of image quality assessment.
针对数字图像的客观质量评估，从噪声检测的角度，提出了一种基于掩盖效应的无参考图像质量评估方法。
The paper makes a manner that use of melt blown nonwoven fabric rim leftover, namely uses as internal material for gauze mask that surface material is spun bonder nonwoven.
提出熔喷非织造布边料变废为宝的方法，即将其用作面层为薄型纺粘法非织造布的口罩的内层材料。
A battery powered portable human body carrying electronic human breath filtration device is an electronic nose mask and is the most ideal alternative to conventional filter paper type nose mask.
一种以电池为动力的轻便式人体电子呼吸过滤装置是一个电子鼻罩而且是取代传统过滤纸型鼻罩的最理想的替代物。
This paper proposes an approach of automating resolution measurements on shadow mask CRT displays. This new technique is based on conventional double slit method.
本文提出了一种对荫罩式彩显管分辨率进行自动化测试的方法。
This paper proposes an approach of automating resolution measurements on shadow mask CRT displays. This new technique is based on conventional double slit method.
本文提出了一种对荫罩式彩显管分辨率进行自动化测试的方法。
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