最简单的热电偶真空计是由电阻丝组成.The simplest version of the thermocouple gage consists of a resistance wire.电阻丝 长度问题,是采取将所需长度的金属丝做成栅状结构的办法解决的.The conductor - length problem was solved by forming the required length of wire into a grid...
Methods: 30 male SD rats ( islet donors ) were randomly divided into 3 groups.方法: 取30只SD雄性大鼠随机分成3组,采用胶原酶V型 胰管灌注分离消化及 Ficoll 纯化,制备三种不同纯度的胰岛.He urged donors to step up their efforts to send aid to Somalia.他敦促各捐赠方加快速度将援助物资送...
A Delta II rocket was launched from Cape Canaveral early this morning.今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。If cancers are spotted early there'sa high chance of survival.如果癌症在早期发现的话，存活的几率会很高。Hopes of an early cut in interest ...