1. A - and B grade hex bolts mainly used in the smooth surface of high precision machinery, equipment.

2. G irls B Grade Volleyball Team participated in the HKSFF Volleyball Competition from November to March.

3. G irls B Grade Volleyball Team participated in the HKSFF Volleyball Competition in November and December.

4. Serena connects with a new Shakespeare teacher, who has no clue about what is going to happen when she gives Blair the first B grade in her life.

5. Methods By a retrospective survey on data in our sperm bank, we studied influences of total motile spermatozoa number(A, B grade) on AID pregnancy rate.

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6. Adhering to the Supplier Rating System and methodically changing 4 D-grade suppliers can earn a new supplier a rank of B grade or above.

7. The main failure forms, such as thermal fatigue crack and thermal ablation of die of axle box body by semi-solid squeezing forming of B grade steel were presented based on lots of experiments.

8. The elementary principle and electric circuit design of large scale B grade submersible pump test system were given. The system has high grade, double frequency and large power.

9. The study, carried out in Los Angeles County, California, concluded that just 61 percent of home kitchens would receive an A or B grade on such a screening and that at least 14 percent would fail.

10. According to Supplier Rating System, change 4 suppliers ranking D grade, and the new suppliers could rank B grade or above.

11. The corrosion tests were carried out for three types of commonly used welded joints of B grade marine carbon steel by piece hanging method and electrochemical measurement.

12. By test, it was found that one of them could be used as B grade insulating paint.