然后，这些植物就被授粉，从而成熟结籽。These plants are then pollinated and allowed to mature and produce seed.这些花通过昆虫授粉.The flowers are pollinated by insects.某些物种只能异花授粉。Certain varieties cannot be fertilised with their own pollen....
In the future the machines will need spare parts and maintenance.这些机器将来会需要备件和维修保养。Other than blowing up a tyre I hadn't done any car maintenance.除了给轮胎充气外，我没做过任何汽车保养。She was a high-maintenance girl who needed lots of...
An axial vector may itself enter into a vector product.轴矢量自身可参与矢积.Those that are aligned perpendicular to the plane are called axial hydrogens.与平面垂直定向的氢叫做直立氢.Objective To analyze the treatment effect of brain diffusive a...