Contact and repellency activities of ethanol extracts from twenty medicinal plants against Rhizopertha dominica ( Fab . ) ( Coleoptera: Bostrichidae )20种药用植物乙醇提取物对谷蠹的触杀和驱避活性 ( 英文 )...
可调节的挂链钩可方便地与各种货车紧密配合.The adjustable chain coupling can easily coperate with all kinds of lorries.有辊筒线 、 皮带线 、 网带线 、 悬挂链线 、 货架等系列产品.A line of roller, belt line, with net line, hoisting chain line, shelves and other produc...
Psychometric tests can save organizations from grim and costly mistakes.心理测试能够使组织机构避免犯下损失惨重的大错。Today the best tests are performed in the hospital .see chap. 17..现在，本医院可提供最好的化验（见第17章）。He mobilized public opinion all over ...
墨镜有效地阻隔强光保护眼睛.Dark glasses is an effective shield against the glare.举起一张报纸阻隔. 你觉得较凉爽 吗 ?Hold a newspaper in between. Do you feel cooler?南非被阻隔于奥运会外达32年.Pretoria was barred from every Olympic competition for 32 years....