Aiming at the conservation of water resources. Water is the key topic, reasonable structure. In daily life, water use is one of the most close to our life water use, is often the most easily overlooked. At present, most of the water on the market a single form, or more functions, but ignored the effect of water flow and pressure, and the pressure to control the size of the size of the water flow not only effectively improve the rational use of water resources, but also increased the service life of water tap. The vacuum water saving tap has very high practicability and popularization value. Keywords: tap, decompression, throttle, elastic deformation
最新问答: 首字母填空:Let me make a p___ for the show. 填上合适的数1、( )*0.5=0.88除8 7.5除0.25=( )*0.1 7.5*0.8=3除( )2、850立方 过氧化氢溶液是双氧水吗? 等差数列等差数列{an}满足a1=-60,a17=-12,设bn=|an,求{bn}的前n项之和Tn. 破折号有哪几种解释? 英语翻译RT... 如图所示,大圆半径为10厘米,小圆半径为1厘米,将小圆沿大圆滚动一周,求小圆的圆心经过的长度 在平直的轨道上,作业车以5m/s的速度匀速运动,一列火车以15m/s的速度 单糖为什么不能水解?这是我们检测题我错了 《石灰吟》的意思是什么?越短越好 古怪的算式如果知道12*8+2=98;123*8+3=987,你能在下面的括号中填入合适的数字,使等式成立吗?( )*8 1mocFe跟足量的Z单质化合时,转移的电子为多少mol? I have been to many hotel but none of them can ( )this one f 英语翻译Plant yourself deep in a bed of faith,and pack it down s 怎么画光的折射怎么画?想知道折射的角度是怎么确定的 He was in the kitchen.(改为一般疑问句) 已知两点P(-2,2),A(2,2),动直线l过A,直线PM垂直于M,则PM的中点轨迹方程是 蔓的多音字组词 一个数与它本身相加相减相乘相除所得结果相加得2025这个数是 关于地方时,下列说法正确的是:A北京上海的地方是相同
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