?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

self-acting
考研

美 / self ˈæktɪŋ /
adj. 自动的

1. Some of the oil and chemical industries are built almost entirely around self-acting controls.
石油化学工业的一些生产设施,已经用机器自动控制。
2. Behind were six Fire-flies, well supplied with self-acting lamps, which they kept hidden somewhere under their wings.
后面六个消防苍蝇,以及提供自我代理灯,他们一直隐藏的地方根据自己的翅膀。
3. The range consists of three different types of regulation systems: a wireless system based on radio communication technology, a hard-wired system, and a self-acting system.
主要的三种标准的产品包括:基于无线控制技术的无线控制系统、线电缆系统以及自立式系统。
4. The chief products include: Bellows seal globe valve, Free-float steam trap, Pilot pressure reducing valve, Pneumatic control valve, Self-acting temperature-sensing valve, Cyclone separator etc.
目前工厂生产的主导产品有:波纹管密封截止阀、自由浮球疏水阀、先导式减压阀、气动调节阀、自作用式温控阀、汽水分离器等。
5. The man later told police that he was acting in self-defence.
事后那人告诉警察,他当时是出于自卫。