Why do you wear that ring on first finger?你怎么把那戒指戴在食指上?In Spain, snapping the thumb and first finger a few times is a form of applause.在西班牙, 将拇指和食指放在一起打响指是欢呼的一种形式....
从而为范成法加工任意齿形的齿轮奠定了理论基础.Then, a theoretical foundation is established for gear generation with arbitary profile.本文采取计算和实测方法分析了齿轮滚刀重磨后齿形的变化,认为齿面畸变是重磨齿形误差的主要原因.It is believed that the flank distortion is the main reason of ...
He had wrenched his ankle badly from the force of the fall.他因摔倒而严重扭伤了脚踝。They wrenched open the passenger doors and jumped into her car.他们使劲拽开后座车门，跳进了她的车子。I wrenched my hand away from my attacker.我用力把手从袭击者手里挣脱出来。...
她1930年写了篇女性主义的短文《论节育》。She produced a feminist tract, "Comments on Birth-Control", in 1930.阅读这篇短文很有启发。Reading this essay was an elevating experience.戏评日间电视节目的幽默短文a skit on daytime TV programmes...
The principal acids used are phosphoric, citric, fumaric, tartaric, and malic acids.主要添加的酸有磷酸 、 柠檬酸 、 富马酸 、 酒石酸和苹果酸.Sodium potassium tartrate and tartaric acid are osmotic laxatives.酒石酸及其钾盐是有渗透作用的泻剂.This article studies ...