Use high speed oscillation cobbra , ensure all parts of products have same strength during oscillation ,prolong tester lifespan, decline failure rate. 采用高速振动头同步振动,保证在振动时各部位的产品受到的力的情况一致,并延长试验机的寿命及故障率的降低。
Dendrochronology A method of archaeological dating by the ANNUAL RINGS of tree, used when the lifespans of living and fossil trees in an area overlap. 在一定的区域内当生活树木以及化石树木的寿命有重叠时,通过树木的年轮来推测考古学年代的方法。
An oystercatcher searched in Lincolnshire was a record 36 ages old, and a razorbill, average lifespan 28 ages, was discovered alive in Gwynedd 37 ages despite it was ringed. 科技家发现,在林肯郡的一只蛎鹬居然已活到了36岁;在格温内思郡的一只海雀已有37岁高龄,而海雀的平均寿命为28岁。科技家还发现了一只善飞的燕鸥。
An oystercatcher found in Lincolnshire was a record 36 years old, and a razorbill, average lifespan 28 years, was discovered alive in Gwynedd 37 years after it was ringed. 科学家发现,在林肯郡的一只蛎鹬居然已活到了36岁;在格温内思郡的一只海雀已有37岁高龄,而海雀的平均寿命为28岁。科学家还发现了一只善飞的燕鸥。