A synthetic method of partial ester of carboxylic acid (PECA) surfactant was given in the paper.

文章提供了一种羧酸偏酯(简称PECA)表面活性剂的合成方法。

youdao

Throuhg the products and service provided by PECA, PECA gradually make serious compromisr in promoting human development.

通过佩克提供的产品和服务，决定了佩克在促进人类进步方面作出的承诺。

youdao

Through establishing mutual benefit relationship between PECA and world-class service is the most important case in ourbusiness.

佩克通过建立世界级产品和服务基础上的互惠互利关系，得以为广大客户提供最高的价值。

youdao

Down 3-1, Quinnipiac (28-7-5) cut it to one on Peca's goal at 8:02 of the third period.

WSJ: Quinnipiac rallies to beat Canisius

"Peca basically won the game for them in the first period, " he said.

WSJ: Quinnipiac earns Frozen Four bid, beats Union, 5-1

Al mismo tiempo y tal vez por las mismas razones, uno puede pensar que la prensa peca de alarmista.

BBC: OTROS IDIOMAS