对不同渗透性的砂层及岩心,均具有较好的封堵效果.It is suitable to the sand beds and cores with various permeabilities.封堵旅客使用的马车路是违法的.It is illegal to block any traveled wagon road.可取式桥塞是一种油田用井下封堵工具.Removable bridge plug is an oil filed down - h...
Require Authentication - Require that clients use authenticated or encrypted packets.客户端可以使用加密验证,也可以不使用,又客户端决定.Account details are encrypted to protect privacy.账户资料被加密，以保护隐私。Your passwords are encrypted using several dif...
另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.胞嘧 啶 核苷:当胞嘧啶通过β - 糖苷键与D- 核糖接合形成的核苷.Cytidine ( cytosine nucleoside ) A NUCLEOSIDE formed when cytosine is linked ...
Some flowers prefer shade, just like young lassies, they must avoid sunlight.有的花喜欢阴凉, 就跟姑娘们似的, 得防晒.Some are like buxom lassies and others are like slender, poetic, quiet ladies.有的象肥美的少女,有的象纤瘦的 、 有诗意的 、 恬静的贵妇....
Brian was whirling like a dervish, slapping at the mosquitoes and moaning.布赖恩如同旋转舞蹈的托钵僧一样转来转去，一边拍打着蚊子一边抱怨不停。He threw himself around the stage like a whirling dervish.他在台上转圈，如同跳旋转舞蹈的托钵僧一样。First of all, you cut costs like ...
They struck a deal with their paper supplier, getting two years of newsprint on credit.他们同纸张供应商达成协议，可赊购两年的新闻用纸。Dol International was set up in year 2006, we are professional stone product supplier.纵横建材有限公司创建于2006年, 是一家致力...