纤毛虫最重要的3个类群为下毛目、肾形目和前口目，其中又以下毛目种类最丰富。
The 3 most important groups of soil ciliates were Hypotrichida, Colpodida and Prostomatida, among which Hypotrichida had the greatest richness of species.
有些候鸟一口气横穿撒哈拉沙漠和地中海，而有些则在穿越前在北非稍作休整。
Some birds traverse the Sahara and the Mediterranean Sea in a one go, while others make a pit-stop in northern Africa before crossing.
如图，在苏尼翁海岬约2500年前的海神庙上空，月亮咬了太阳一小口。
Above, the moon takes a "bite" out of the sun's disk over the roughly 2, 500-year-old temple of Poseidon in Cape Sounion.
2006年11月13日—东亚经济在2006年前三个季度的快速增长，大约帮助2500万人口摆脱了严重的贫困。
November 13, 2006-strong economic growth in East Asia helped lift some 25 million people out of severe poverty in the first three quarters of 2006.
再进一步地，脂质分离器布置在第二室内用于在通过释放口释放前从血液中分离脂质。
Still further, a lipid separator is arranged in the second chamber for separating the blood from lipids before the release through the release port.
结果：在观察到二尖瓣口左房侧负向血流的同时，在其左房的相对面可测到前向性血流。
RESULTS: the reverse flow were detected at the mitral valve orifice of left atrium, at the opposite of which in left atrium the front flow were also detected.
所以，焊前直接采用火焰切割坡口的工艺可行。
So before welding, the process flame cutting groove is feasible.
当人接触到带有另一人的呼吸道飞沫的表面如办公桌面，然后又在洗手前触摸了自己的眼睛，口或鼻，病菌就这样传播。
Germs can be spread when a person touches respiratory droplets from another person on a surface like a desk, for example, and then touches their own eyes, mouth or nose before washing their hands.
采样口和外壳采用优质航空铝制造，表面闭孔处理，便于使用前的灭菌消毒。
Sampling pedestal and crust adopt quality aviation aluminum, surface close hole processing and is convenient to sterilize and disinfect before using.
爸爸把碗柜放在马车的座位下面，又在柜子前放了满满一口袋的谷子作为马的食物。
Father put the cupboard under the wagon-seat, and in front of it and he laid a sack of corn for the horses.
爸爸把碗柜放在马车的座位下面，又在柜子前放了满满一口袋的谷子作为马的食物。
Pa put the cupboard under the wagon-seat, and in front of it he laid a sack of corn for the horses.
这话出自一位前芬兰职业足球守门员之口，听上去总让人有些哭笑不得。
That might seem harsh coming from a former Finnish professional goalkeeper.
50年前，博帕尔有10万人口；如今是180万，而且人数还在上升。
Fifty years ago, Bhopal had a population of 100, 000; today it is 1.8 million and rising.
芭芭拉.斯奈德（BarbaraSchneider ）在吃过晚饭后绝不会再吃一口东西，因为她认为睡觉前吃东西会使她睡不着。
Barbara Schneider doesn't allow herself a morsel of food after dinner, believing that eating before bedtime will keep her awake.
20年前当达达布难民营启用的时候，一家五口难民住的范围有大约一栋小房子那么大。
When Dadaab opened two decades ago, a family of five lived on a plot of land that was about the same area as a small house.
祖父走到祖母的棺木前，颤抖地吸了一口气，然后开始放声歌唱。
Grandpa stepped up to my grandmother's casket and, taking a shaky breath, he began to sing to her.
英国三分之一人口有睡眠问题，现代人每晚平均睡眠时间是七个小时，而几十年前，差不多是九小时。
A third of the UK population suffer from sleep-related problems, while the average person now sleeps for only seven hours a night, compared with almost nine a few decades ago.
两个礼拜前，当我在楼下吃早餐，用汤匙舀着最后一口米粥时，听到楼上的洗手间里传来一声响亮的撞击声。
Two weeks ago while I was downstairs having my breakfast spooning the last of my rice porridge I heard a loud crash coming from the upstairs bathroom.
工作前必须仔细检查平口刀是否紧固在刀架上。
Before work you must carefully check whether the flat tool is fastened on the tool carrier.
自从三年前他父亲去世后，这个五口之家就一直在艰难度日。
Ever since his father had passed away three years ago, the family of five had struggled.
灰口铸铁、球墨铸铁的辉光离子氮化质量较难保证，其根本原因在于氮化前工件清洗不当。
It is difficult to warrant the quality of glow-ion nitriding to grey cast iron and ductile cast iron. The basic reason is that the iron can't be washed clearly before nitriding.
认为置管前对肠造口相关情况的评估、选择适宜的管路，并根据不同类型管路进行针对性的处置和置管后的管理是治疗成功的关键。
The key points of nursing were assessment of intestinal stoma, selection of proper therapy tube, as well as proper management of indwelling therapy tube.
前、后端盖利用螺钉及止口固定，同时将转子总成固定。
The front end cover and the rear end cover are fixed by screws and rabbets. Meanwhile, the rotor assembly is fixed.
刘9井位于刘庄油气田断鼻构造圈闭高部位，是三十年前钻探的一口裸眼工程报废井。
Liu9 well drilled and explored before 30 years is one engineering abandoned well with open hole which is situated at high part of fault nose structure trap in Liuzhuang oil and gas field.
是管件制作和管道施工焊接前管端坡口加工的关键设备。
It's a key machine for pipe fitting forming and pipe end beveling before welded in pipeline construction.
是管件制作和管道施工焊接前管端坡口加工的关键设备。
It's a key machine for pipe fitting forming and pipe end beveling before welded in pipeline construction.
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