将面团擀开成椭圆形，把两边折至中间，翻个面，擀成30厘米左右的长段，然后卷成圆筒状。

Roll each dough out as an oval shape. Gently turn both edges to the middle. Turn the dough upside down and roll out at about 30cm long.

youdao

根据套损实际情况，导向杆下端部可以加工成椭圆形、平面式或笔尖形状，可以堆焊合金或不焊合金。

Based on the actual situation, guide rods can be processed into the bottom of the department of oval, planar, or tip shape, you can not weld surfacing or alloy.

youdao

s和1s上两个电子组成的键合电子成椭圆形,这是成键，这是反键电子，这些是刚刚已经画过的能级,我也给你们画了。

s plus 1s gives you this oval ellipsoid which is the bonding, and here are the antibonding, and then these are the energy levels that I have been drawing for you.

youdao

s plus 1s gives you this oval ellipsoid which is the bonding, and here are the antibonding, and then these are the energy levels that I have been drawing for you.

s和1s上两个电子组成的键合电子成椭圆形,这是成键，这是反键电子，这些是刚刚已经画过的能级,我也给你们画了。

麻省理工公开课 - 固态化学导论课程节选