This text carries on the pot experiment to study on the efficiency of six kinds of Slow controlled release fertilizer made by ourselves ( NAP, NAF, NAX; NHP, NHF, NHX).

The paper presents a study on NHF-ⅱ air centrifugal rotor superfine powder classifier newly developed. The classifier efficiency at different rotor speeds and exhaust capacity was studied.

对研究开发的NHF-Ⅱ空气离心转子超细粉分级机进行了性能试验，主要研究了转子转速、风量对分级性能的影响。

After 5 hours, the sheep in HF group all survived, and 2 sheep of NHF group died.

5h后HF组全部存活，NHF组死亡2只。

NHF, on the other hand, expresses the writer's understanding of society and life within the scope of political route.

而新历史小说以不违背政治路线为基准，通过作品自由表达创作个体对社会、人生的认识和体验。

Classifier performance of nhf-ⅱ air centrifugal rotor superfine powder classifier

NHF-Ⅱ空气离心转子超细分级机的性能

Keep left leg bent with heel planted. Put your weight on that leg.

保持左腿弯曲、踮起脚来.把你身体的重量放在左腿上.

Keep left along the wall.

沿着墙靠左边走.

We have to keep low profile.

我们必须保持低调.

They always just keep low-key.

他们总是只是保持低调.

Propose solutions balancing long and short term goals keep low investment.

为客户平衡长短目标和利益,推荐最合适的方案.

Update safety stock of every part and keep low stock level.

及时修正所订零件的安全库存量,并将整体原材料库存控制在合理水平.

We'll let you live in the room on condition that you keep it clean and tidy.

如果你们能保持房间整洁的话,我们可以让你们住.

We will let you use the room on condition that you keep it clean and tidy.

如果能保持整洁的话,我们要吧让你使用这个房间.

You can use this room provided that you keep it clean and tidy.

如果你能保持房间干净整洁,你就可以用这间房子.

You may borrow the book so ／ as long as you can keep it clean.

只要你不把书弄脏就借给你.

I love WEnzhou Like Sam and May. I keep it clean every day.

我爱温州就像和一样, 我每天都使它保持干净!

Wash the apple. Keep it clean.

洗苹果. 使它保持干净.

You may borrow this book as long as you keep it clean.

只要你不把书弄脏,就可以借给你.

The evaluation of left ventricular systolic function by two-dimensional and M-mode echocardiography in patients with left ventricle enlargement A Study on LVB Using 2-DE and DCG

二维超声心动图和M型超声心动图评价左心室扩大患者左心室收缩功能的对比研究

Piano maker Steinway& Co. ( lVb) has agreed to be taken private.

顶级钢琴生产商施坦威（Steinway&Co.）再一次达成私有化协议。

Methods: To ligate left ventricular branch ( LVB) to make acute myocardial ischemia model of rabbit.

结扎兔冠状动脉左室支（LVB），制备急性心肌缺血模型。