Portland cements with similar specific surface were made in the same laboratory-mill with different clinkers produced in new type dry process kiln, wet process kiln, and shaft kiln.
选取了新型干法窑、湿法窑和立窑等不同烧成工艺条件下所生产的熟料，在同一实验磨中磨制成比表面积相近的硅酸盐水泥。
They all accumulated on the surface of rice root system in the medium with higher ammonia concentration, while the wild type strains were removed from rice root surface in the same condition.
这些转化结合子在高铵下表现出固氮活性，并能集聚在水稻根表，而野生型菌在相同条件下远离水稻根表。
At the same time weaving production company category, electricity embroidered category, laser color and type of leather carving, Fangpi, comprising color stamping surface.
公司同时生产编织类、电绣类、激光彩雕类及对真皮、仿皮、檫色压花皮面处理。
At the same time, using a new type surface wear resistant coatings, the anti-erosion ability of drill bit is strengthened.
同时采用新型表面防磨涂层，加强了钻头抗冲蚀能力。
At the same time, using a new type surface wear resistant coatings, the anti-erosion ability of drill bit is strengthened.
同时采用新型表面防磨涂层，加强了钻头抗冲蚀能力。
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