原油受到了自然产生的分解油类物质的微生物的侵蚀。The oil is attacked by naturally occurring microbes which break it down.还有更多熟悉的地貌是因地表侵蚀形成的。More familiar landscapes have been sculpted by surface erosion.这会让肥沃的土壤暴露在外，使其容易受到侵蚀。This leaves fertile ...
Torsional microslip at the clamps results in spurious torques which act like pivot friction torques.夹紧处扭杆的微小滑移会产生干扰力矩,它的作用和轴颈的摩擦力矩一样.Torques resulting from this change are called compliance torques.这种变化产生的力矩称为弹性变形力矩.Air ...
我去年因病耽误了很多功课。I missed a lot of school through illness last year.因病请假不扣工资.No deduction in pay is made for absence due to illness.因病而缺课的学生不下十名.No fewer than 10 students were absent through illness....
Major Cities: Guatemala City , Quezaltenango, Escuintla, Chiquimula, Puerto Barrios, Retalhuleu, Mazatenango.主要城市: 危地马拉城 、 萨尔特南戈 、 斯昆特拉 、 基穆拉 、 里奥斯港 、 塔卢莱乌 、 萨特南戈.Over 20 years ago, Gerardo Barrios began a quest to compa...
Objective [ WT 5 BZ ] To evaluate the value of AFI in antepartum monitoring.目的评价羊水指数(AFI)在产前监护中的价值.Antepartum haemorrhage affects the incidence of emergency caesarean section and birthweight.产前出血对急诊剖宫产率、新生儿体质量有一定影响.Antep...