spot welding;spot bonding

The spot inwall defect of aluminium alloy pipes during extrusion is one of the defects that only occur in the process of extrusion without lubrication.

鋁合金管材擠壓時在其內表面產生的點狀擦傷，是無潤滑擠壓過程特有的一種表面缺陷。

excess or void spots defects of printing plates,printing gum rolls,printing media or other eventually happened process imperfections.

印刷品上往往出現多余的不同顏色的點狀弊病或缺少不同顏色的點狀缺陷,這種情況不外乎是在印版上存在有多余的或缺少的點狀弊病或缺陷,或是在印刷時用的承載體上有點狀缺陷,或印刷時產生的點狀弊病。

Failure analysis of the spot flaking on 40Cr steel gears surface;

40Cr鋼齒輪齒面點狀剝落失效分析

The technology of sofa leather manufacturing which have a brightsome spots effect with American cowhides as raw materials was discussed.

對以美國奶牛皮為原料生產的點狀效應沙發革的工藝,進行了初步探討。

DKDP crystals were grown by the Z cut point seed (5mm×5mm×3mm) on the basis of the study on the stability of DKDP solution.

本文在研究DKDP溶液穩定性的基礎上 ,采用Z切點狀籽晶 (5mm× 5mm× 3mm)生長了多塊DKDP晶體 ,在2 5 0ml和 10 0 0ml生長瓶中分別獲得了在 [10 0 ]和 [0 0 1]向生長速度可達到 3mm/d和 4 5mm/d的點狀籽晶生長優質DKDP晶體的生長條件。