Specifications exist that strictly define the composition and properties of the material which is usually made available in three grades, LPG propane, LPG butane and LPG mixture.
规范通常将LPG分为三个等级：LPG丙烷、LPG丁烷和LPG混合物，对它们的组成和性质有严格的定义。简称液化气。
Results of retained Marshall Stability (MS0) and Tensile Strength Ratio (TSR) indicate that without additive, the moisture damage resistance of basalt asphalt mixture may not meet the specifications.
马歇尔试验残留稳定度（MS0）与冻融劈裂试验残留强度比（TSR）结果显示，无添加剂玄武岩沥青混合料的水稳定性不一定能够满足规范要求；
The central mixture must match with all the equipments and the method of use with the specifications of the mixing trucks makers office.
中央混合物必须符合所有的设备和使用方法同规格的卡车制造商混合办公。
The central mixture must match with all the equipments and the method of use with the specifications of the mixing trucks makers office.
中央混合物必须符合所有的设备和使用方法同规格的卡车制造商混合办公。
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