2【题目】看拼音写词语gǔ renwan gu chang qingliang fengliáng shuixi xinxi xiaoqi xiqian xixing IiIi zi yǔ wen cheng yui xiang qixiang shuiyan han dui ku shu chun nuan dui qiu liang暖he feng dui xi yǔ zhao xia dui xi yang,朝霞ying ge dui yan wu nido yu dui hua xiang 反馈...
intdo xi xuan yuqianfang bai ji yi si xingjin de chengyu shi3.精挑细选。与“千方百计”意思相近的成语是()。bai nidn da jiqian zhen wanqueqian hui bai zhuanxiongfong she foA.百年大计B.千真万确C.千回百转D.想方设法【题目】一道难题,求学霸指点,谢谢!igtdo xi xuan yu qianfang bai...
为了解决传统电磁铁行程太小的问题,研制了一类新结构的电磁铁.它采用开放的磁路结构,由沿轴向充磁的圆柱形永磁体、线圈、输出件、塑料制成的基体等组成.基体作为线圈骨架,外面缠绕线圈,内部有一个同轴的圆柱形空腔,永磁体可在空腔运动.通过调整线圈与永磁体的尺寸和它们之间的相对位置,行程能达到50mm.通过增加线圈和...