in essence

The two things are the same in outward form but different in essence.

两件东西外表形式一样, 但实质不同。

Crenshaw deciphered the algorithm of the twisting motion, known as helical klinotaxis, and assisted Nekton's team in applying it to the robots, in essence crafting a new guidance technology.

克伦肖解算出「螺旋状调转趋性」摆运动的运作法则，并协助耐顿研究所的团队设计机器人，基本上是发展出一全新的导技术。

Britain has promised Rwanda $100m in aid a year over the next decade, with only “light conditionality” (in essence, an understanding Rwanda will not reinvade Congo).

英国也承诺卢旺达在今后的10年内，每年们提供1亿美元的援助，但附带“轻微的制约性”（也就是说，就卢旺达不回再次侵犯刚果而达成共识）。