The U. S. bacterial limit is no more than 500 colony-forming units of bacteria per millilitre of water.
美国的细菌限制标准是毫升的水中不含有超过500菌落的细菌。
Shear strength of the locking member is increased by specially forming the recess-engaging portion of the U-shaped packing.
剪切强度锁定成员特别是增加了形成休会，进行部分的U形包装。
Now scientists say there's another system forming in the Pacific that's much larger and could have dramatic impact on U. s. weather for several years.
现在，科学家们还有另一个系统形成太平洋的更大，并可能产生重大影响的美国天气有好几年了。
A series of flexible U sections, changed in its sections, was separately simulated and analyzed by edger roll forming and flat roll forming.
基于中厚板无切边轧制法中立轧轧边变形的物理模拟，分析了平辊立轧与倒棱轧制对中厚板断面形状的影响。
A description has been given to new process and important points of structure design of pre-forming die for precision forging U. S. A type of octagonal hammer with a practical die presented.
介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点。
A description has been given to new process and important points of structure design of pre-forming die for precision forging U. S. A type of octagonal hammer with a practical die presented.
介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点。
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