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1·The switches close the contacts and complete the circuit.

这些开关可接通形成闭合电路。《牛津词典》

2·I was confronted with an array of knobs, levers, and switches.

我面对着一排旋钮、控制杆和开关。《柯林斯英汉双解大词典》

3·The front window switches are awkwardly placed on the dashboard.

前窗的开关安装在仪表板上，使用不便。《柯林斯英汉双解大词典》

4·There is also the same exuberance and unpredictability in sudden fad switches.

时尚的突然转变也具有同样的活力和不可预测性。

5·There are also instructions about the function of all the buttons and switches.

这里还有关于所有按钮和开关功能的说明。

6·Unfortunately, electronic switches that are this small cannot withstand intense radiation.

遗憾的是，这么小的电子开关无法承受强烈的辐射。

7·Electronic computer chips made of tiny silicon wafers now regularly contain millions of electronic switches.

由微小硅片制成的电子计算机芯片现在通常包含数百万个电子开关。

8·The switches will, however, be slower than electronic switches and the chip will contain only 12,000 switches.

然而，这种开关会比电子开关慢，而且芯片将只包含12000个开关。

9·While Stella napped, Sally would clean her home in Jackson, New Jersey, wiping down doorknobs and light switches.

史黛拉打盹的时候，莎莉会打扫她在新泽西杰克森的家，擦拭门把手和电灯开关。

10·Micro-Mechanics plans to produce a chip that, because it uses only microscopic mechanical switches, will be invulnerable to radiation damage.

微机械公司计划生产一种芯片，因为它只使用微小的机械开关，所以不会受到辐射损伤。

(1)switch on接通，开启

(1)switch off（用开关）关掉；切断（电源）

(1)switch in接通；合闸

(1)control switch控制开关

(1)power switch电源开关

(1)light switch灯开关；照明开关