它的研制与成功应用，克服了原来多种热采封隔器的缺点，如操作困难，不座封和不解封的几率较高等。
This kind of packer overcomes many disadvantages of the previous ones, such as difficulty in operation, and high possibility of not setting and not releasing.
结论舰船人员腰部疾病发病率较高与船上特殊的工作环境、在该环境中人员的工作年限及人员的身高等因素有关。
Conolusions the incidence of lumbar disorders in crew is related to the special work environment on board, the length of service in those environments, and the crew's height.
构成的铂电阻在线检测系统具有结构简单、价格低廉、测量精度高等特点，具有一定的实用性和较高的社会推广价值。
System formed by this subject has such characters as simple structure, low price, high measuring precision, wide range, etc. It has certain practicality and higher society popularized value.
应用推荐