ตัวกรองผลการค้นหา
We've had peace for nearly 20 years. The Olympics are coming soon
แปลว่าพวกเราอยู่ที่นี่มาเกือบ 20 ปี แล้วโอลิมปีกใกล้จะเริ่มแล้วด้วย
Ottawa Sand
แปลว่า(Concrete Engineering) A sand used as a standard in testing hydraulic cements by means of mortar test specimens. Sand is produced by processing silica rock particles obtained by hydraulic mining of the orthoquartzite situated in open-pit deposits near Ottawa, Illinois; naturally rounded grains of nearly pure quartz.
Construction Joint
แปลว่า(Concrete Engineering) The contact between the placed concrete and concrete surfaces, against or upon which concrete is to be placed and to which new concrete is to adhere, that has become so rigid that the new concrete cannot be incorporated integrally by vibration with that previously placed. Unformed construction joints are horizontally placed or nearly so.