single-U groove

The procedure parameters to keep smooth bead on both sides with single side welding for the sheet, groove size of backing, assembly gap, traverse tolerance between wire and workpiece are all determined by experiment.

通过工艺试验，确定了保证薄板单面焊双面成形、光滑均匀的工艺参数范围、背面垫板凹槽尺寸、工件装配间隙、焊丝和工件的横向偏差量等。

Design narrow gap groove suitable for dual beam laser welding thick plates with filler wire, guaranteed technological requirements of single pass multilayer welding and low deformation, increased neutral of wire and light to some extent.

设计了适合于厚板双光束填丝多层焊的窄间隙坡口形式，保证了厚板激光填丝焊的单道多层焊与低变形工艺要求，并一定程度上提高了丝与光对中性。

NKE Austria has released a range of single-row deep-groove ball bearings.

耐克奥地利已发布了一系列单排深沟槽球轴承.

Rubber boot must have double groove on lip and not single as per your sample.

橡胶靴启动槽上必须有双重唇而不是单一的按你的样品.

Different amelioration measures on coastal saline soil have different effects. The effects of comprehensive amelioration measures are superior to single measure. The effects of carrying on land cover on the basis of digging deep groove combined with planting salt-tolerant plants are the best.

不同改良措施对滩涂土壤的改良效果不同，综合措施的改良效果优于单一措施。