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如图所示，喷洒农药用的某种喷雾器．其药液桶的总容积为15L，装入药液后，封闭在药液上方的空气体积为2L，打气筒活塞每次可以打进1atm、150cm3的空气，忽略打气和喷药过程气体温度的变化． （i...
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高三下学期物理《》真题及答案
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一个喷雾器的药箱容积是13L如果每分钟喷出药液650mL喷完一箱药液需要用分钟．
电动喷雾器的优点主要包括
工作效率高
防治效果好
劳动强度小
农药用量省
工农16型背负式喷雾器由液压泵空气室喷射部件滤网开关握柄 和喷管药液桶等6大部件组成
某种喷雾器的贮液筒的总容积为7.5L如图所示装入6L的药液后再用密封盖将贮液筒密封与贮液筒相连的活
在农村和公园里常用喷雾器喷洒农药喷雾器的工作原理是利用外缸压缩气体对内缸充气当缸内压强达到某一值时喷
某压缩式喷雾器储液桶的容量是5.7×10－3m3.往桶内倒入4.2×10－3m3的药液后开始打气打气
工农16型背负式喷雾器的构造由药液桶等大部件组成
2
4
6
8
工农16型背负式喷雾器由药液桶液压泵空气室3部分组成
某压缩式喷雾器储液桶的容量为5.7×10﹣3m3往桶内倒入4.2×10﹣3m3的药液后开始打气打气过
一般压力喷雾器主要由储药液桶气泵等动力传输装置与三大部分组成
利用手动喷雾器喷洒除草时可以进行重复喷雾
一种背负式喷雾器药液箱的容积是14L．如果每分钟喷出药液700亳升喷完一箱药液需用多少分钟
储压式喷雾器是常用的快速灭蝇器械之一但其灭蝇的效率远低于喷洒
工农16型背负式喷雾器的构造由液压泵空气室6大部件组成
药液桶、滤网、开关握柄和喷管、贮压部件
药液桶、滤网、开关握柄和喷管、喷射部件
药液桶、滤网、开关握柄和喷管、连接部件
药液桶、滤网、开关握柄和喷管、活塞部件
手动喷雾器目前大量使用的切向喷头由于结构关系其喷量大误差也大分布不均匀只能进行粗放的农药喷洒已不适
向心式
离心式
涡流芯式
涡流片式
缝隙喷洒法应选用喷雾器和喷头并调节喷头使喷雾成线状
滞留喷洒法应选用喷雾器和喷头
一般储压式喷雾器主要由几部分组成
储药桶、喷头
储药桶、雾化部件药液动力输送装置
喷头、气泵
盛药器和雾化器
好的药剂还要用的喷雾器来喷洒才能充分发挥其优异的生物效果
如图所示喷洒农药用的某种喷雾器其药液桶的总容积为14L装入药液后封闭在药液上方的空气体积为2L气压为
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下面的图形能折叠成长方体．
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250千米比千米少70%．
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高三下学期物理
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