弹道测试表明，武器和受害者体内取出的子弹相吻合。Ballistic tests have matched the weapons with bullets taken from the bodies of victims.这些武器正在接受弹道测试，以确定它们是否曾用于枪击案中。The weapons are undergoing ballistics tests to see whether they were used in the ...
普通的电流计无法响应这些快速的交替变化.An ordinary meter will not respond to these rapid alterations.他十分经心在意地望着电流计.He was very attentive to the ammeter.如果将一正弦电流通入动圈式电流计, 那么这电流计的读数为零.If a sinusoidal current is sent through a movingcoil galv...