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- two tube lens 双筒透镜
- Bath crock bibcock has a flower to asperse even, the standard fittings such as two tube that drink water, bracket. 浴缸龙头还要有花洒、两根进水软管、支架等标准配件。
- There is an acceleration and a deceleration each movement between two tube columns to prevent step loss and to improve efficiency. 在每个管间距行程中，步进电机必须有升速和降速过程，这样可以防止堵转、失步并提高效率。
- Two tubes are used to make the maize stubbles pass unobstructed. 使用间隔管在根茬带开缺口，减小玉米根茬的抬升力。
- The determination of ion transference number by two tube apparatus not only is easy, but also has accurate results and it can satisfy experiment requirement. 采用双管式测量装置测定离子的迁移数,不仅使用简便,而且测定结果准确性较高,能满足实验要求。
- The interval between the upgoing tube and downgoing tube in Wutongshan tunnel is less than the limitation between two tubes given in design specification . 梧桐山隧道上、下行线间距的确定突破了设计规范关于两座平行隧道及小线间距的规定。
- This experiment was obtained two tubes of Mortierella vinacea Dixon-Stewart from the base of stipe. 本试验从菌柄基部分离得到2支葡酒色被包霉。
- Each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes. 四条腿中每个都装有一个简单的螺旋千斤顶，千斤顶中又有一个在两根管道中做伸缩操作的推力轴承。
- Power system, the LED flashes two tubes that enter the working state control circuit. 系统上电后，发光两级管闪烁，表明控制电路进入工作状态。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The business is owned by two partners. 这家商行为两名合伙人所拥有。
- All tunnels have two tubes, one for each direction of travel. Under normal conditions the tubes are one-way roads, the same as a dual carriageway. 所有隧道都有两条管道,在正常情况下,这些管道一如分隔车路,都是单程行车。
- After Drosophila were bred at different temperatures, the variation of the numbers of Drosophila in two tubes were observed. 将果蝇在不同的温度下饲养后，观察不同温度下饲养的果蝇进入两只离心管内的数量变化。
- Magnitude-Phase coincidence type TWTs have a topical feature nearly coincident gain and phase-shift between any two tubes. 幅相一致行波管之间须具有高度一致的增益和相位延迟。
- The air then passes through the larynx and down the trachea .The trachea splits into two tubes, called the primary bronchi.One bronchus passes into each lung. 接着空气通过喉下至气管，气管分为两根，称为主支气管，每一根主支气管通入一叶肺。
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
- The meat marinated in the brine for two days. 这块肉在盐水里泡了两天。
- BHID with two tubes in one hole can be used as the primitive method in CSDH in adolescent with its merits on quickly-recuperation and slightly-traumatic. 单孔钻颅置双管冲洗引流术创伤小，疗效明确，恢复快，可作为青年人慢性硬膜下血肿的首选治疗。
- At that time he had two helpers. 当时他有两个助手。
- Kindly send us two samples of each class quote for. 报价时，请对每一个等级的各寄两个样品。
