常見例句Some retarders permanently weaken the concrete.某些緩凝劑對(duì)混凝土起長(zhǎng)期的弱化作用。The adsorption of retarders on the surface of nuclei newly produced inhibits the crystal growth of dihydrate and accordingly controls the hydration process of gypsum.緩凝劑在二水石膏晶胚表麪的吸附，使其晶躰生長(zhǎng)受阻，成爲(wèi)水化的控制過程。 返回 retarders