perforation是什么意思

网络释义

用法例句

Dacryon point,ethmoidal foramen,frontoethmoidal suture and the orbital opening of the optic canal were observed.

方法:在手术显微镜下观察20例(40侧)成人颅骨标本和15例30侧经10%福尔马林固定的成人尸头标本眶内侧壁的Dacryon点、筛孔、额筛缝及视神经管眶口。

Screen length,incline angle,and screen-aperture are the most important screen pa-rameters,which directly relate to the capacity and efficiency of the screen.

筛面长度、倾角和筛孔孔径是最重要的筛面参数,与筛分机的处理能力和筛分效率有着直接的关系。

Slots with round end and slots with square end plate screens

GB/T12620-1990长圆孔和长方孔筛板

Round and square perforation plate screens-Thickness of 3 mm and above

GB/T10613-1989板厚≥3mm的圆孔和方孔筛板

button-screen pipe

筛孔中有过滤网的衬管

Perforated like a sieve.

筛状的象筛子那样穿有小孔的

Screen plants--Codification for designating perforations

GB/T10061-1988筛板筛孔的标记方法

Synthesis of MCM-41 Mesoporous Molecular Sieve and Zeolite Membranes;

MCM-41介孔分子筛及分子筛膜的制备

SYNTHESIS OF MESOPOROUS MSU-1 SILICA WITH NARROW PORE SIZE DISTRIBUTION

窄孔分布介孔分子筛MSU-1的合成(英文)

Study of TS-1 with Micro-and Mesoporous Structure;

微孔—中孔复合分子筛TS-1的研究

Both single and double screen deck, stainless slot deck and woven wire cloth are available, the sieve size should be dpecified.

系列筛机分单层、层筛面，筛孔有冲孔编织，特殊需要可商定，并提出筛孔尺寸。

The Synthesis, Characterizations and Properties of Novel Micro/mesoporous and Bi-micro/mesoporous Composite Molecular Sieves

新型微孔—介孔和双微孔—介孔复合分子筛的合成、表征及其性能

Microanatomy Study on Ethmoidal Artery and Its Branch and Ethmoidal Foramen

筛动脉及其分支、筛孔的显微解剖学研究

" Test sieves--Metal wire cloth, perforated metal plate and electroformed sheet--Nominal sizes of opening"

GB/T6005-1997试验筛金属丝编织网、穿孔板和电成型薄板筛孔的基本尺寸

The Synthesis of Mesoporous Materials and the Encapsulation of Rhodamine B in Mesoporous Materials;

介孔分子筛的合成及Rhodamine B在介孔分子筛中的组装研究

A perforated iron plate or screen for sieving and grading crushed ore.

篦条筛用于筛选粉碎的矿石并分级的有孔铁板或铁筛

Solid State NMR Studies of the Acidity of Microporous and Mesoporous Materials;

微孔、介孔分子筛材料酸性的固体核磁共振研究

A Novel Method for the Preparation of Micro/mesoporous Composite Molecular Sieves;

一类新颖的微孔—介孔复合分子筛的合成方法

STRESS CONCENTRATION AROUND THE SERIES HOLES IN SCREEN PIPE STRUCTURE

筛管孔眼附近的应力集中问题及孔眼分布

Synthesis and characterization of mesoporous-microporous titanium silicate molecular sieve prepared in acid and alkaline media

酸、碱介质中介孔-微孔钛硅分子筛的合成与表征