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- double acting regulator 双级调节器
- Single or double acting door, often become a kind to symbolize luxuriously. 弹簧门，往往成为一种豪华的象征。
- The PV20CB is a normally closed, diaphragm actuated, spring loaded, direct acting regulator. PV20CB是一种通常处于关闭状态，隔膜驱动，弹簧负载，直接作用的调节阀。
- Quarter turn, double acting and spring return type with a totally enclosed design and no external moving linkages. 四分之一转,双动和弹簧回位类型,具有全封闭结构,没有外部活动连接。
- AW pneumatic actuator has two types,double acting and single acting(spring reset),two divided cylinder,with large output touque,flexible and balance. 产品描述：AW气动执行器分为双作用式和单作用式（弹簧复位），两个分体气缸，输出扭矩大，动作灵活平衡；
- AW pneumatic actuator has two types,double acting and single acting(spring re set ),two divided cylinder,with large output touque,flexible and balance. AW气动执行器分为双作用式和单作用式（弹簧复位），两个分体气缸，输出扭矩大，动作灵活平衡；
- The CZE series double acting single rod piston heavy machinery hydraulic cylinders are the actuator which reciprocates linearly in hydraulic system. CZE系列双作用单杆活塞式重机液压缸，是液压系统中作往复直线运动的执行机构。
- Model ME2000-24/20 double acting napping machine is mainly used for surface raising of wool fabrics, woollen blanket, knitted and weaving filament fabrics. 本机使用干呢绒织物、毛毯、针织和机织长丝织物的表面起毛。
- The output torques and mounting Dimension of special strokes ALPHA actuators with double acting can be found by consulting the relative tables of ALPHA standard series actuators. 双作用特殊行程阿尔法气动执行器的输出扭矩和安装尺寸可参照对应的阿尔法标准系列执行器参数表。
- TYPE : Reverse Acting with bevel Gear, Direct Acting, Direct Acting with Handwheel, Double Acting, Tandem Piston, Reverse Acting, Reverse Acting with Handwheel. 反向作用倾斜齿轮，直接作用，直接作用手轮，双作用，串联活塞，反向作用手轮
- The ships will meet Russian Maritime Register ice class LU7 requirements and will feature a Double Acting Tanker (DAT) design which allows operation in either direction. 这两艘船将符合俄罗斯船舶登记局的LU7冰级要求，并且将拥有双作用油轮(DAT)设计，使船只可以双向行驶。
- The double act came at the launch of two ferrochrome blast furnaces in a patch of desolate scrub 60 miles west of Pretoria. 此次双方合演是为了庆祝两座铁铬合金鼓风炉投入使用，地点在南非比勒陀利亚以西60英里一片荒无人烟的丛林地带。
- The geneticist made his name as one half of science's most famous double act, when he and scientist Francis Crick cracked the code for DNA. 当他和弗朗西斯克里克一起破解了DNA密码后，遗传学家把他的名字奉为科学界最闻名的黄金搭档之一。
- OUTPUT TORQUE OF DOUBLE ACTING TYPE 双气控型输出扭矩
- Mounting Dimension of Double Acting Cylinders 双动标准型安装配件尺寸
- Sliding cylinder double acting engine 滑缸双动式引擎
- Double Acting Actuator Torque Data 双动执行机构扭矩数据
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- Double acting or spring return design 双动或弹簧复位结构
- I do not realize it is a double feature. 我原先不知道这是双片连映。
