Unverified75% confidenceTradeoffTime unknown
滴管刻度较小,每次用量仅需数滴,对手抖或视力不佳的家长来说精准计量有一定难度
1
Sources
75%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified3-5岁幼儿优先选放大倍数5-8倍的儿童放大镜,10倍以上高倍镜景深浅、视野窄,幼儿手抖对不准焦反而容易放弃观察76% similarUnverified低龄儿童(约3岁以下)配合度差,容易因注视不稳定导致测量结果波动大甚至无法完成检测74% similarUnverified儿童户外探索套装的放大镜倍数应控制在3-5倍,超过10倍会因视野过窄、需精确对焦而导致低龄儿童难以使用,反而降低探索兴趣72% similarUnverified8倍放大倍数对儿童手持来说是合理上限,倍数再高手抖会导致画面晃动严重,选购儿童望远镜不必追求更高倍数72% similarUnverified放大镜仅4倍,满足幼儿启蒙观察足够,但对已有一定科学探索基础、想观察细微结构的大龄儿童来说倍数偏低72% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/787680API
curl https://kongchang.com/api/v1/knowledge/claims/787680MCP
get_claim(id=787680)