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change over contact：转换接点=>c接点,切換接点

change-over cock 切换旋塞 | change-over contact 转换接点=>c接点,切換接点 | change-over contact with neutral position 双方向接点

change over mechanism：转换机构换算机构

change over lever 转换杆变档杆 | change over mechanism 转换机构换算机构 | change over n. 转换

change over mechanism：换算机构

change-over gear 转换装置 | change-over mechanism 换算机构 | change-over pilot valve 切换滑阀

change over plug：转换插塞

change-over pilot valve 切换滑阀 | change-over plug 转换插塞 | change-over radius 过渡区半径

change over cock：转换旋塞

change over bridgecontrol room pilot air valve 驾驶室-控制室转换用控制空气阀 | change over cock 转换旋塞 | change over condition 转换情况

change over cock：切换旋塞

change-over 切换,转换 | change-over cock 切换旋塞 | change-over contact 转换接点

change over signal：转换信号

转换程序 change over procedure | 转换信号 change over signal | 转换开关 change over switch

fall over oneself for：热衷

fall over each other 争夺 | fall over oneself for 热衷 | fall over oneself 摔倒

fall all over oneself; fall over backwards; bend over backwards：不遗余力;竭尽全力

精诚所至,金石为开. Faith moves mountains. | 不遗余力;竭尽全力 fall all over oneself; fall over backwards; bend over backwards | 半途而废 fall by the wayside; wither on the vine

over head and ears：深陷于

over foul line 界外 | over head and ears 深陷于 | over here 这里

crystal rectifier：晶体整流器,晶体检波器

晶体收音机,矿石收音机 crystal receiver | 晶体整流器,晶体检波器 crystal rectifier | 晶体发送器 crystal sender

Mutual trust is fatal to friendship：(相互信任对于友谊来说不成或缺. )

2)The fatal eruption of the volcano caused unimaginable losses. (火山毁灭性的... | 3)Mutual trust is fatal to friendship. (相互信任对于友谊来说不成或缺. ) | 4)The accident caused several fatalities. (变...