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在斯里兰卡儿童体育活动回忆问卷和日志的验证使用双重标记的水

Prasangi Dabare1, Pujitha Wickramasinghe2, Indu Waidyatilaka3

  • 1Department of Physiotherapy, Faculty of Allied Health Sciences, General Sir John Kotelawala Defense University, Colombo, Sri Lanka.

European journal of clinical nutrition
|February 18, 2025
PubMed
概括

体育活动回忆问卷 (PAR-Q) 是评估斯里兰卡儿童体育活动的有效工具. 身体活动日志被发现对这个年龄组来说不那么可靠.

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Testing Water Quality01:14

Testing Water Quality

When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...