Acid fracturing is an important stimulation treatment of carbonate reservoir.

Sand plug always occurred during fracturing in slant well or directional well.

斜井或定向井在压裂过程中,经常因出现砂堵导致施工失败.

Objective To construct the GST fusion protein expression plasmid of cardiotrophin-1 ( CT-1 ) and tetanus toxin C frag-( ment ( TTC ). )

目的构建心肌营养素 -1 ( CT -1 ) 和破伤风 外毒素 C片段 ( TTC ) 重组融合蛋白表达质粒.

A container experiment was conducted to study clonal integration of stoloniferous Fragaria vesca under light heterogeneity.

通过盆栽实验,研究了匍匐茎草本野草莓在异质性光照条件下的克隆整合.

It became fragile and broke easily when handled.

它变脆了,一拿就碎.

The child's health is fragile.

这孩子身体太娇.

Note: Do not save snail shells are fragile.

注意: 烘烤时将蜗牛壳剔除,以免烘烤时裂掉.

Unlike the fragile finches, both the hearty sparrows and the stubborn thrasher liked Bio 2.

不同于经不起折腾的蓝带雀, 精力充沛的麻雀和固执的矢嘲鸫都爱上了生物圈二号.

She looked wan and fragile.

她看上去既疲乏又虚弱.

The fragile economies of several southern African nations could be irreparably damaged.

一些南非国家的脆弱经济可能会被彻底破坏，无法挽回。

Walkers can unwittingly damage the fragile environment in which the birds live.

徒步旅行者可能无意中破坏鸟类生活的脆弱环境.

That the scale of wartime resistance activities, but public support remains fragile.

战时那种规模的抵抗活动, 然而公众的支持仍然脆弱.

He placed one hand heavily on a fragile, wobbling table.

他把一只手重重地放在一张摇摇晃晃的桌上。

The fragile peace was hanging by a thread as thousands of hardliners took to the streets.

成千上万的强硬派分子走上街头示威，脆弱的和平局势危在旦夕。

She was small and fragile and looked incongruous in an army uniform.

她又小又弱，穿一身军装看起来很不协调。

This kind of paper is too fragile.

这纸太脆.

In many cases aid throws substantial burdens onto fragile strange and distribution systems.

在许多情况下,援助给储存能力差的系统和分送系统造成了沉重的压力.

I'm feeling rather fragile after all that beer last night.

昨晚喝了啤酒,现在我感到软弱无力.

His overall condition remained fragile.

他的整体情况还是很不稳定。

Such was the fragile state of Italian affairs when I set out for Cairo and Teheran.

这就是在我动身前往开罗和德黑兰时意大利的那种风雨飘摇的局面.

But most of the startups and their budgets are relatively small, and their finances are fragile.

然而,大多数此类初创机构的规模相对较小,预算也较少, 财务状况薄弱.