But, the messenger has gone several, the meson cannot push.可是, 差人去了几趟, 介子推不来.Button shaped beads pendant , Earing, a meson, welcome to order!异型纽扣珠吊坠,耳钉, 介子一套, 欢迎订货!Strange meson production in heavy ion collisions has bee...
Murchison followed with his eye the hand of his chronometer.莫奇生的眼睛追随着他的时计的秒针.The chronometer - maker's expert hand plays an essential role in this process.生产精密时计的专家们的手工调试在这一工序中起着关键性的作用.It is use in navigation, chron...
用黑色毡头笔画出基本轮廓（见图4）。Draw the basic outlines in black felt-tip pen (see fig. 4).从上往下俯瞰，山谷呈现出人形轮廓。Viewed from above, the valleys form the shape of a man.他摸着自己轮廓分明的下巴想了一会儿。He thought for a moment, stroking his well-defined ja...