The source of electrons in an electron microscope is a heated filament.电子显微镜中的电子源,是一加热的灯丝.Characterzation: high quality quartz bulb, biplanar filament which enables increased illumination, uniform color temperature and l...
越来越多的公司客户寻求将设施的管理外包出去。Increasingly, corporate clients are seeking to outsource the management of their facilities.还有一些不太常有的设施，包括图书馆和健身房。Other amenities, less commonly available, include a library and exercise room.房子位置便利...
Does this correspond with or contradict his earlier ploys?这与他之前的表现相符或冲突?Young children should never contradict what their parents say.孩子们绝对不应顶撞父母.'Don't contradict your mother,' was Charles's sharp re...