The results of x - ray photoelectron spectrum ( xps ) demonstrated the ce ions in pure phase ce : yig ( x < 0 . 2 ) were in the state of trivalence . scanning electron microscope ( sem ) analysis showed conglobation of yig and ce : yig particles , whose size were smaller than 1 urn Xps的分析结果显示单相ce ： yig ( x 0 . 2时)中ce离子是以正三价的状态存在，这与物相分析结果是一致的。
2.
The direction which embroiders wants consistently , while rising needle should make sure central point , while embroidering to loosen to make an effort tightly and appropriately to be even , while rising needle or ending don ' t tie knot , should stay an 1cm or so line head in the noodles anticipate back press a prison mutually , noticing don ' t make the line head entwine conglobation 一、绣出的方向要一致，起针时应确定中心点，绣时要松紧适度用力均匀,起针或结束时不要打结，应留出一厘米左右的线头在面料背面相互压牢，注意不要使线头纠缠成团。
