Adopting whorl driving can change circular movement to linal movement, and the automatic-locking function can ensure the using security, we develop the structure, analyze the principle, make necessary mechanics analyses, push over the formula, and make it clear that the jack is logical in structure, smart in power knighthead, durable in use, and with a big proportion of output and input.

利用蝸桿傳動、螺紋傳動，將轉(zhuǎn)動變換為直線運動、將轉(zhuǎn)矩轉(zhuǎn)換為和向力；同時利用螺紋傳動的自鎖作用亚洲黄网专区在线观看，保證使用安全可靠。結(jié)果設(shè)計出了多功能千斤頂?shù)闹饕Y(jié)構(gòu)免费高清一级片，分析了其工作原理中文自拍日韩视频在线观看免费，進行了必要的力學(xué)分析，推導(dǎo)出數(shù)據(jù)計算的有關(guān)公式等自拍视频在线观看网站。

The text also investigates the intension of monorail vehicle knighthead and stability of the full support institution through analysis the force-received state when the monorail vehicle running on the ascent,decline and detour road during load and without load status.

通過分析空載和負載時影音先锋强奸，單軌車在水平、坡度和轉(zhuǎn)彎三種路況上運行時的受力狀態(tài)欧美日韩免费高清视频一区二区，研究單軌車支撐桿件的強度以及整體支撐機構(gòu)的穩(wěn)定性亚洲色图欧美一区。

The sub-problem optimal way is used to optimize the mutual insert multi-span greenhouse and the optimal result is disposed using iterated algorithm. Through repetitious iterative disposing the optimal result of three kinds of loads to the mutual insert multi-span greenhouse, it is acquired that the arch pipe's diameter is 32mm, the knighthead's diameter 20mm, the mutual distance 60cm and the gradient side pole's horizontal projection distance is 50cm.

采用零階優(yōu)化方法對互插式塑料溫室的優(yōu)化計算結(jié)果進行多次迭代處理，得到3種工況下的優(yōu)化結(jié)果：拱桿直徑為32mm国产AV字幕无码一区；支撐桿直徑為20mm超碰在线中文字幕；互插間距為60cm黄片高清无码在线观看；傾斜側(cè)桿的水平投影為50cm。

knighthead：支撐桿

knightage 騎士 | knighthead 支撐桿 | knighthood 騎士身分

knighthead：首副肋材

knighthead船首副肋材 | knighthead首副肋材 | knighthead牙檣邊木

knighthead：牙檣邊木

knighthead首副肋材 | knighthead牙檣邊木 | knight十字帶纜樁

knighthead：船首副肋材

knife-shapedpointer刀形指針 | knighthead船首副肋材 | knighthead首副肋材

knighthead KNIGHTHEAD：支撐桿

rotatable chair ROTATABLE CHAIR 轉(zhuǎn)椅 | knighthead KNIGHTHEAD 支撐桿 | shelf SHELF 擱板