aerated concrete

Study on pore problem of GAP low-oxygen propellant during curing process;

GAP贫氧推进剂固化气孔问题研究

Analysis and Solution of Pore Defect of WD615 Cylinder Head;

WD615气缸盖气孔缺陷的分析与解决

Process Study on Reducing Pore in Production of Solid Composite Propellant;

复合固体推进剂生产中减少气孔的工艺研究

Weld porosity shortcomings reasons for the formation and Preventive measures;

焊缝气孔缺陷的形成原因及防治措施

Prevention and mechanical analysis of porosity formation in pulsed CO_2 laser welding of 30CrMnSiA;

脉冲CO_2激光焊接30CrMnSiA气孔控制及机理分析

Laser welding of high nitrogen steel 1Cr22Mn16N Ⅰ. Influence of shielding gas composition and heat input on N-content and porosity of weld metal;

1Cr22Mn16N高氮钢激光焊接 I.焊接保护气体组成和热输入对焊缝氮含量及气孔性的影响

Influence of Vacuum Dead-point on Gas Hole for Die Casting;

抽真空截止点的位置对压铸件气孔的影响

Formation cause and prevention of gas holes in stainless steel wirerope clamper castings produced by investment casting;

不锈钢钢丝绳夹座熔模铸造气孔的产生与防止

Formation and Prevention of the Gas Holes in Investment Cast Steel Casting;

熔模铸钢件气孔的产生与防止

Comparison of stomatal morphology and density between tissue-cultured plantlets and earth-cultured ones;

草莓试管苗与土培苗气孔形态和气孔密度的比较

Effects of Plant Growth Regulators on Stoma in Low Epidermis of Tobacco Leaves;

植物生长调节物质对烟草叶片下表皮气孔的影响

A Simplified Method for Observing Stomata by Shaving off Mesophyll Cells to Obtain Epidermis from Leaf and Its Application;

一种获得叶片表皮观察气孔的简易方法及其应用

Study on Stomata Characters of Tetraploidy Lilium concolor Salisb;

渥丹百合多倍体气孔性状的调查研究

The effects of shadowing on stomatal and photosynthetic characteristics of Trifolium repens;

遮荫环境对白三叶草气孔和光合特性的影响