The mechanical environment is described in the paper and then the environments in three different orbits are proposed, called leo ( low earth orbits ), meo ( medium earth orbit ) and geo ( geosynchronous earth orbits ). the influence produced by the atomic oxygen, micrometeorites and debris, ionizing radiation and cold welding under vacuum is presented in the paper. some principles are proposed, which can be as the method to choose materials of the mechanism in space environment
空間環境中力學環境對可動結構的影響直接關繫到機構的設計問題，所以本文第四章中嶽建如：中文摘要浙江大學博士學位論文20024首先詳細論述了空間環境中的力學環境，然後給出了空間環境的三種軌道環境劃分，及每一種環境影響因素對空間可動結構設計的影響，包括原子氧、離子射線、溫度、微隕石和碎
片以及真空冷
焊現象等環境因素，提出了材料選擇的原則，為可動結構材料選擇提供了一定的依據。
A resistance meander wire usually of constantan is welded onto a strip of foil
在金屬薄
片上
焊接了改良的電阻導線，通常使用的是康銅導線。
It consists of two thin strips of dissimilar metals fused together.
它是由兩條薄薄的不同金屬
片焊接在一起而構成。
A new design device against electric shock based on mcu
單
片機的
焊接防觸電裝置的開發
Implementation of flip chip and chip scale technology
叩
焊晶
片和晶
片標度技術的執行
Standard reference radiographs for steel fusion welds
鋼熔
焊連接用標準參考射線照
片
Our main products : wire netting machine, semi and automatism diamond netting machine, facility chain link fence machine, machine with shuttle and non shuttle, crimped wire mesh machine, barbed wire machine, razor barbed wire machine, hexagonal wire netting machine, electric welding net machine, square opening wire mesh weaving machine, shuttleless weaving machine, fiberglass iinsect screening weaving machine, coil & wire winding machine, wire mesh fencing machine, gill netting machine, all types of draw bench machine
主要生產：金屬絲網織網機，半、全自動菱形網機，簡易型勾花網機，無梭織機，有梭織機，軋花網機，電
焊網機，點
焊網
片機，窗紗機，鋼板網機，六角網機，石籠網機，護欄網
焊機，扣絲機，刺網機，清潔球機，大、中、小型拉絲機等。
For photoflash, lug type, miniaturized, low leakage current reduces battery consumption
閃光燈用
焊片式縮體產品，漏電流小，可減少電池消耗。
The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的
焊接工藝從分段
焊和局部加熱兩個方面進行了優化，結果表明:採用普通工藝
焊接時，葉
片焊后殘余拉應力出現在
焊縫及其附近區域，並且在葉
片出水邊的熔合線附近（危險區域）出現了峰值;在採用優化的分段
焊時，先
焊兩端后
焊中間的方法可以降低葉
片危險區域的
焊接殘余拉應力峰值，降低效果與葉
片出水邊
焊段長度、
焊縫各段的
焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。
Standard reference radiographs for examination of aluminum fusion welds
用於檢驗
焊接中鋁的標準參考射線照
片
Care must be exercised in attaching the lead wires to the soldering tabs.
在往
焊接接線
片上
焊導線時必須非常小心。
Electrical communications engineering ; solder bags, solder lugs, solder pins
電氣通信技術.釬
焊片，
焊環和
焊針
Stamped solder lugs, with slot
帶槽的沖壓
焊片
Stamped solder lugs, with hole
帶孔壓制
焊片
Soldering - tag terminal strip
釬
焊片端子板
Tabular layouts of article characteristics for solder lugs, solder pins, soldering terminals
焊片焊接銷接線柱的產品特性圖表
Solderability tests for component leads, terminations, lugs, terminals and wires
元件引線接線端
焊片接頭和金屬絲的軟釬
焊性試驗
Standard for safety for wire connectors and soldering lugs for use with copper conductors
與銅導線一起使用的電線連接器和焊片的安全性標準
