Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛對系著安全帶司機軋傷的可能性;保證rops在碰撞和沖
擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗連續沖
擊能力;當車輛已經處于顛覆狀態時,已經變形的rops應能支撐住整車。落物保護裝置(簡稱fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定,對大型
推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,
推導彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。
Great amounts of lift can be achieved with the guerilla ii
最大的數額
推力可能達到與游
擊隊員ii 。
As they moved westward, the british were suddenly and unexpectedly enveloped and overcome by french and indian forces using guerrilla tactics
當他們向西
推進時,法軍和印第安軍隊利用游
擊戰術,突然向英軍發起了出人意料的兩面夾
擊,並把英軍
擊敗。
Games will encounter some treasures, such as rapid growth or an increase in the snowball power, and so on, players are smooth clearance of a big weapon, each of the final mark, will be the emergence of boss, must use the snowball freeze headman when asked this little monster, and to promote the snowball attack headman
游戲中會出現一些寶物,像是增快速度或是增加雪球威力等等,都是玩家順利過關的一大利器,每一大關的最後,還會有boss的出現,必須利用雪球凍結這些大頭目丟出的小怪物,再
推動雪球來攻
擊大頭目。
Secondly, detailedly analyzing reasons inducing these problems, author finds it is that not thinking of the slope of pipeline and the friction in the process of producing water hammer pressure functions, but, thinking of the effect of the slope of pipeline in the process of producing the consequent water hammer calculative continuity function, which results in the inconsequent illogicality in the whole process of producing
接著,對這些問題存在的原因進行了詳細分析,發現在當前
推導水
擊壓強公式的過程中沒有考慮管道的傾斜度和摩擦阻力的影響,而在後面水
擊計算的連續性方程的
推導過程中則考慮了管道的傾斜度,這就導致了在當前連續性方程的整個
推導過程中前後矛盾的不合理現象。
Blitzkrieg was named so because it included surprise attacks, " lighting fast " rapid advances into enemy territory, with coordinated massive air attacks, which struck and shocked the enemy as if it was struck by lightning
閃電戰之所以被如此命名因為它包括:突然襲
擊,以閃電般的速度快速
推進到敵人的領土,並配以大量的空中攻
擊來協助,從而使受到打
擊的敵人猶如被閃電
擊中一般。
The vengeance formation in medea gives an explanation of natural and attacking character of human being, opening a new expressional route in tragic drama
美狄亞復仇闡釋了人的復仇攻
擊本性,其獨具特色的殘酷型復仇將人類超常態特性
推向極致,開辟了新的悲劇表現內容。
The chinese soldiers, even when their commanding hilltops glowed like cigarette - butts beneath tonnes of blazing napalm, would manhandle their mortars from deep - dug shelters and strike with deadly effect
而中國呢,哪怕是險要的山頭被幟熱的汽油彈燒成煙蒂般模樣,灼熱無比,他們的士兵仍會從深邃的戰壕里用手把迫
擊炮
推出來,實施致命打
擊。
The ncct exercise aims to identify countries and territories with deficient anti - money laundering systems and encourage them to rectify their shortcomings. the current ncct list includes myanmar, nauru and nigeria
特別組織
推行檢討不合作國家及地區的措施,目的是鼓勵被列為不合作的國家及地區改善其打
擊清洗黑錢制度的不足之處。
Damping bearing is a kind of bearing with damping ring. it is not the same as traditional bearing not only on geometry but also on material. damping ring has many merits such as perfect abrasive resistance, good noise proof ability, good self - lubricating property, excellent resistance to impact and its life length is much longer
該類軸承為帶阻尼環的
推力軸承,在結構和材料上跳出傳統框架,陰尼環具有減振、抗噪、自潤滑、耐磨、耐沖
擊等功能,是傳統
推力止
推軸承壽命的數倍。
The tpa18 putter i used to win the ‘ 89 masters, ‘ 90 masters and ‘ 90 british open
Tpa18輕推干推擊桿,我用它贏得了89年和90年的大使大師杯,還有90年的英國公開賽。