垂直排泄管必须安装在它的下方。
Vertical discharge line must be installed with its direction downward.
不要对排泄管攻螺纹、堵塞子或加盖。
P63蛋白主要表达在排泄管的外层细胞。
P63 expressed mainly in the nucleus of the basal cells of excretory duct.
原肾管的毛细排泄管细胞质索之间没有隔状联结；
The cytoplasmic cords of protonephridial capillaries do not contain a septate junction.
结果显示，两种吸虫的排泄系统均由焰细胞、排泄管和排泄囊组成。
The result showed that the excretory system of each consists of the flame cells, the excretory tubes and the excretory bladder.
排泄管与安全阀出口必须有相同的通径，必须从安全阀开始垂直向下。
The drain pipe must be the same size as the valve outlet, and must pitch downward from the valve.
设计时应该规定当将泵装置降低到排泄管连接端口位置上时，泵装置能够自动与排泄管道连接。
The design shall be such that the pumping units will be automatically connected to the discharge piping when lowered into place on the discharge connection.
连接通向地漏的排泄管的美国瓦茨气隙的安装将有助于处理通过安全阀排出的任何正常排放或有害的泄漏。
The installation of a Watts air gap with the drain line terminating above a floor drain will handle any normal discharge or nuisance spitting through the relief valve.
排泄管道必须能够完全容纳安全阀和排泄管的排泄物。在任何情况下，都不得限制或减少排泄管道的尺寸。
The discharge line must be installed to allow complete drainage of both the relief valve and the discharge line. The discharge line must not be restricted or reduced in size under any circumstances.
由于甲基汞在体内的肠肝循环和肾脏近曲小管对甲基汞的重吸收效率高，使甲基汞的体外排泄十分困难。
The excretion of methyl mercury becomes very difficult because of high enterohepatic circulation and reabsorption by proximal convoluted tubule.
曾有个太空游客(身份严格保密)在空间站如厕时忘记打开真空吸入管，结果太可怕了，整个厕所都是喷溅的排泄物。
One space tourist (whose identity is closely guarded) forgot to switch on the vacuum in the ISS toilet before off-loading. The results were disastrous, and the chamber was splattered with feces.
加压素是由垂体后叶分泌的激素，在肾脏通过提高集合管对水的通透性来调节水的排泄。
Vasopressin is a hormone secreted from the posterior pituitary and regulates water excretion from the kidney by increasing water permeability of the collecting duct.
要解除症状和控制痛苦，医生也许使用针或一支稀薄的管排泄在胸口或腹部加强了的流体。
To relieve symptoms and control pain, the doctor may use a needle or a thin tube to drain fluid that has built up in the chest or abdomen.
生殖腺开口于近腹部基部，排泄器官通常为马氏管。
The gonads open near the base of the abdomen and the excretory organs are usually Malpighian tubules.
放松起重机吊索，使泵回到排泄弯管。
On returning pump to discharge elbow, lower hoist cable until it is slack.
在蚯蚓和许多其它无脊椎动物中，这些排泄结构称为肾管。
In the earthworm and many other invertebrates, these excretory structures are called nephridia.
在蚯蚓和许多其它无脊椎动物中，这些排泄结构称为肾管。
In the earthworm and many other invertebrates, these excretory structures are called nephridia.
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