main adj. 1.主要的,主,全,总。 2.充分的,尽量的;全力的,有力的。 the main clause 主要子句,主句。 a main event =〔俚语〕 a main go 主要比赛。 the main fleet 主力舰队。 main operations 主力战。 the main pipe 总管(道)。 a main squeeze 〔美俚〕中心人物,首脑,大老板。 the main line 〔英国〕(铁路)干线;〔美国〕主血管;【电话】中继线。 by main force [strength] 全力;全靠武力[力量]。 main chance 获利良机 (have an eye for the main chance 注意抓住谋取私利的良机)。 with main strength 用全力。 n. 1.体力,气力;力〔仅用于 with might and main中〕;主要部分,要点〔仅用于 for [in] the main中〕; 2. 〔诗〕大海,大洋;〔古语〕本土 (= mainland)。 3.(自来水、煤气等的)总管;干线,干管。 4.【航海】 = mainmast;mainsail. water from the main自来水。 a water main自来水总管。 a supply main自来水总管;馈电干线。 for the main 大体上,大致,大抵。 turn on the main 〔俚语〕哭出来。 with (all one's) might and main 尽全力。 vt. 〔美俚〕把(海洛因等)注射进静脉。
4 . because there are sub - elements in a member with the introduction of inner joints , when tile spatial stifmess matrix of main joints of a member is made , there are some cases of solving the double nonlinear equations , negative stifmesses , and singular stiffness matrices in process of iterating 4 、由于引入了内结点,构件存在子单元,在形成主节点的构件空间单元刚度矩阵时,存在双重非线性方程求解,迭代过程中负刚度和刚度矩阵奇异问题。
Firstly , according to the natural geology study of the quarry , the control structure planes are determined , which are cut to be building blocks by two sets of main joints . failure can occur due to the intensity weaken of the joint planes caused by excavation relief and rain immersion 首先研究了采场的自然地质条件,确定了影响边坡稳定的控制性结构面,即块体主要由两组节理切割而成楔形体,由于开挖卸荷及雨水浸泡,致使节理面强度减弱而发生破坏。