长其(1029年—1055年),宋朝中期壮族建立的政权。族首领侬全福为广西广源州(今靖西、田东一带)势力最大的部族首领,于1029年后在当地建立“长其国”(一曰“长生国”),自称“昭圣皇帝”,立其妻阿侬为“明德皇后”,封儿子侬智高为“南衙王”。侬全福一度依附大瞿越李朝,但不久又宣布独立,不接受大瞿越的宗主地位。1039年,大瞿越军队突袭长其国,虏走侬全福。侬智高继位,向大瞿越请求释放其父,李太宗拒绝了他的请求,杀其父于升龙。
联合国秘书长及其特别顾问 the UN Secretary-General and his Special Adviser
延长其寿命 extend its life
土耳其式长衫 kaftan
延长其使用周期 Prolonging Its Usage Period
其他长期资产 Other long term assets ; Other non-current assets ; other long-term assets
其它长期负债 other long-term liabilities - other
其他长期负债 Other long-term liabilities ; Other long-term Debt ; other long term liabilities ; Other long-term liability
新土耳其长衫 The New Kaftan
其它长期应付款项 other long-term payables
董事长愤怒地指责其职员,“我身边全是些没用的人!”
The president turned furiously on his staff. "I'm surrounded by incompetents!"
坎贝尔公司的董事长退休时,麦戈文被被提名为其继任者。
When the chairman of Campbell's retired, McGovern was named as his successor.
房子的木质框架用长钢条加固,以增加其额外的强度。
The house's wooden frame is reinforced with long steel rods to give it extra strength.
The fact that when you go in a circle, you accelerate is what we're learning here, coming from the fact that velocity is a vector and its change can be due to change in the magnitude or change in direction.
而当你做圆周运动时你也在加速,这是我们在这里所学到的,原因就在于,速度是一个矢量,其变化可以通过改变模长,或者方向来实现
That means the acceleration is pointing towards the center of the circle and it has a magnitude a.
也就是说加速度,始终指向圆心,其模长为 a
take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.
对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r
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