The traditional turbocharger cannot match well with engine at all low speed and high speed conditions. At the same time the economic performance at sub load and acceleration characteristic is poor.
传统废气涡轮增压器很难同时兼顾高速、低速柴油机工况,同时存在着部分负荷经济性和加速性能差等问题。
The Duration column lists the time the element itself took to load, while the Total Duration column shows how long all the sub elements took.
Duration 栏列出装载元素本身所用的时间,Total Duration 栏列出所有子元素所用的时间。
Depending upon the load placed on the server and the relative size of the entity bean that has been requested, queries on entity beans can have sub-par response times.
根据服务器上的负载和所请求实体bean的相对大小,实体bean的查询可能有不达标的响应时间。
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