The column of drill base is a trunk welding structure, and it is important to support the whole drill.
钻机底座立柱为箱形焊接结构，是整个钻机的支撑构件。
The following team defense drill is our favorite for reacting to each base running situation batted ball, bunt, steal, or rundown.
以下是我最喜欢的球队的防守训练，基本涵盖每个垒包发生的情况，击出的球，短打，盗垒，或夹杀。
Our company is the profession factory to produce straight shank twist drill and wood working drill, and is national united export product base of"trade, industry, agriculture" .
我公司是从事直柄麻花钻和木工钻生产经营的专业厂商，是国家“贸工农”联合出口商品生产基地企业。
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