The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

When we use the word（）we mean that an idea or theory is being applied: that whatever the teacher does, certain theoretical principles are always borne in mind.

机电一体化产品是指采用机电一体化技术，在（）基础上创造出来的新机电产品。

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

If we carry out our plan with（）we will surely achieve our goal sooner or later.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。