When they borrow a chaw they don t generly cut it off with a knife , but set the plug in between their teeth , and gnaw with their teeth and tug at the plug with their hands till they get it in two ; then sometimes the one that owns the tobacco looks mournful at it when it s handed back , and says , sarcastic : " here , gimme the chaw , and you take the plug . 他们借到一口烟的时候，往往并非是用小刀切开，而是放在上下的牙中间，一边用手撕扯，撕成了两片有时候这块烟叶的本主，在人家还给他的时候，不免哭丧着脸，带着挖苦的口气说： “好啊，把你嚼的一口还给我，把这片叶子给你吧。 ”
With a voltage operating , the flexoelectric effect for a nematic liquid crystal ( nlc ) cell has been investigated theoretically with an analytical approach , and the absorption of ions has not been taken into account . the equations and the boundary conditions of the nlc tilt angle 6 have been deduced 文中假定液晶在界面处没有离子吸附，导出了电场作用下指向矢倾角满足的方程和边界条件，以及挠曲电效应引起的表面能，该表面能在上下基板处形式相同但是符号相反。
